Dictionary API Webflow Integration
Dictionary API is a service that integrates with Webflow to extend your site's functionality.
The Merriam-Webster Dictionary API enriches Webflow content with authoritative definitions, thesaurus entries, and audio pronunciations served dynamically on your pages
Educational sites, language learning platforms, and content-heavy blogs built on Webflow can pull dictionary data inline, so readers never need to leave your site to understand a term
This keeps engagement on your domain while providing genuine value that would otherwise require an external lookup
For Webflow sites in the education, publishing, and content marketing space, the Dictionary API solves the problem of maintaining accurate, up-to-date reference content without manual upkeep
A literature blog can display word definitions when readers hover over challenging vocabulary
An ESL learning platform can embed audio pronunciations for every vocabulary word in a lesson
A legal or medical content site can surface precise terminology definitions to build reader trust and authority
In each case, Merriam-Webster's editorial team handles the content updates; your Webflow site just consumes the API and displays the results
The API is available in two flavors: the Collegiate Dictionary (for general use) and the Collegiate Thesaurus
Both return structured JSON or XML with definitions, example sentences, etymologies, part-of-speech tags, and audio file URLs
Authentication uses API keys, and rate limits vary by plan
For Webflow integration, the simplest approach is a custom JavaScript function that calls the API when a user interacts with a word and renders the result in a tooltip or sidebar
For higher-traffic sites, cache API responses server-side to stay within rate limits and improve response times.
Recent builds that deliver
Clients I've helped ship better Webflow sites
"As I grow in my business, I need services to grow with, Derrick is that service when it comes to my website. He is patient, listens and takes onboard the changes I want in a timely manner. My website changes and develops with the needs of my clients and my offer which is great. He also brings new ideas and perspectives in how to improve and grow in line with my goals and business needs. I look forward seeing how this new phase develops."
Karin Young
Psychotherapist · Karin Counselling
"Derrick has been a great help in getting our SaaS website up and running. He is very knowledgeable in Webflow and was able to help us get the most out of the platform. His design skills are excellent and he was able to create a custom function-filled website that looks great and operates perfectly. I would highly recommend Derrick to anyone looking for a web designer who knows his stuff!"
Taita Ngetich
CEO · Synnefa
"Derrick is just great to work with! He's super fast, always responds in a timely manner, and is very flexible with last-minute requests. His Webflow development skills are rock solid and he has no problems keeping up with the fast pace of early-stage startups."
Carla Nassisi
Growth · Briink
"It has been a pleasure to work with Derrick! He delivered a pixel-perfect website for LLI, which not only looks and performs well but is also very organised and simple to maintain! During the process, he had the patience to clear all the incoming doubts that occurred when we were transitioning from one platform to another, and he not only delivered a great site but also tutorials on how to manage it."
Isabelle Krauze
UX Lead · LLInformatics
"Derrick is a gem of a person and a wealth of knowledge. He was so patient and helpful when explaining the more intricate parts of Webflow and bouncing around different possible solutions. He really knows the ins and outs of Webflow — it's no wonder that he's a certified Webflow Expert! I'm looking forward to the day when I get to work with him again."
Diana Donaldson
CEO · Be Indigo
"Derrick helped us redesign and build our site on Webflow and we couldn't be more pleased with the entire project. Derrick is very easy to communicate with, fast and efficient, and takes time to ask questions and provide suggestions where necessary. He has a great balance of technical and visual knowledge, which helped us build a fast, SEO-optimized site that looks great and is on-brand. Would happily hire Derrick again!"
Eliza Gerland
Strategic Marketer · UFODrive
"Derrick and his team were wonderful to work with and helped us a lot with launching multiple Webflow projects in addition to doing a full website backend revamp. Recommend him to anyone!"
Liza Moiseeva
CMO · Commons
"Derrick and his colleague were tasked with helping to implement new designs for our Home and Product pages on our website. We had a super tight deadline and they took it in their stride. Their communication throughout the project was great and the results were fantastic. Would highly recommend."
Marcus Vitelli
Brand Executive · Flexciton
"Derrick translated our ideas into visually stunning designs. He took our vision for Mirador Local's online presence and brought it to life in a way that exceeded our expectations. I highly recommend him to anyone seeking a talented and reliable designer for their next project."
Gerry White
Global Growth · Mirador
"Derrick has a solid and broad understanding of Webflow and has delivered huge improvements to our website."
Tim Sater
Marketing Lead · Provenance
"Derrick and his team did a great job building our marketing site and leaving us with the tools to sustainably iterate on our website. They didn't stop until the site perfectly matched our design vision. We would definitely work with them again!"
John Outwater
Data Visualization · Renoster
"Derrick made our vision a reality, he's simply a brilliant website developer. We're incredibly happy with the results, which match the designs. If you're a startup or scale-up looking for an excellent web developer to turn your ideas into reality, look no further!!"
Ben Leftley
Senior Delivery Manager · Unmind
"It was great working with Derrick’s team! Communication was smooth and the website ideation, design and development were executed well without much hiccups. Will highly recommend for your website projects! :)"
Indra Basak
Marketing · PreciX
"Derrick was conscientious, efficient and delivered on time. Communication was effective and they really understood the issues at hand. He ultimately delivered a professional looking website that exceeded expectations."
Miles Owen
Head of Digital · FMpay
"As I grow in my business, I need services to grow with, Derrick is that service when it comes to my website. He is patient, listens and takes onboard the changes I want in a timely manner. My website changes and develops with the needs of my clients and my offer which is great. He also brings new ideas and perspectives in how to improve and grow in line with my goals and business needs. I look forward seeing how this new phase develops."
Karin Young
Psychotherapist · Karin Counselling
"Derrick has been a great help in getting our SaaS website up and running. He is very knowledgeable in Webflow and was able to help us get the most out of the platform. His design skills are excellent and he was able to create a custom function-filled website that looks great and operates perfectly. I would highly recommend Derrick to anyone looking for a web designer who knows his stuff!"
Taita Ngetich
CEO · Synnefa
"Derrick is just great to work with! He's super fast, always responds in a timely manner, and is very flexible with last-minute requests. His Webflow development skills are rock solid and he has no problems keeping up with the fast pace of early-stage startups."
Carla Nassisi
Growth · Briink
"It has been a pleasure to work with Derrick! He delivered a pixel-perfect website for LLI, which not only looks and performs well but is also very organised and simple to maintain! During the process, he had the patience to clear all the incoming doubts that occurred when we were transitioning from one platform to another, and he not only delivered a great site but also tutorials on how to manage it."
Isabelle Krauze
UX Lead · LLInformatics
"Derrick is a gem of a person and a wealth of knowledge. He was so patient and helpful when explaining the more intricate parts of Webflow and bouncing around different possible solutions. He really knows the ins and outs of Webflow — it's no wonder that he's a certified Webflow Expert! I'm looking forward to the day when I get to work with him again."
Diana Donaldson
CEO · Be Indigo
"Derrick helped us redesign and build our site on Webflow and we couldn't be more pleased with the entire project. Derrick is very easy to communicate with, fast and efficient, and takes time to ask questions and provide suggestions where necessary. He has a great balance of technical and visual knowledge, which helped us build a fast, SEO-optimized site that looks great and is on-brand. Would happily hire Derrick again!"
Eliza Gerland
Strategic Marketer · UFODrive
"Derrick and his team were wonderful to work with and helped us a lot with launching multiple Webflow projects in addition to doing a full website backend revamp. Recommend him to anyone!"
Liza Moiseeva
CMO · Commons
"Derrick and his colleague were tasked with helping to implement new designs for our Home and Product pages on our website. We had a super tight deadline and they took it in their stride. Their communication throughout the project was great and the results were fantastic. Would highly recommend."
Marcus Vitelli
Brand Executive · Flexciton
"Derrick translated our ideas into visually stunning designs. He took our vision for Mirador Local's online presence and brought it to life in a way that exceeded our expectations. I highly recommend him to anyone seeking a talented and reliable designer for their next project."
Gerry White
Global Growth · Mirador
"Derrick has a solid and broad understanding of Webflow and has delivered huge improvements to our website."
Tim Sater
Marketing Lead · Provenance
"Derrick and his team did a great job building our marketing site and leaving us with the tools to sustainably iterate on our website. They didn't stop until the site perfectly matched our design vision. We would definitely work with them again!"
John Outwater
Data Visualization · Renoster
"Derrick made our vision a reality, he's simply a brilliant website developer. We're incredibly happy with the results, which match the designs. If you're a startup or scale-up looking for an excellent web developer to turn your ideas into reality, look no further!!"
Ben Leftley
Senior Delivery Manager · Unmind
"It was great working with Derrick’s team! Communication was smooth and the website ideation, design and development were executed well without much hiccups. Will highly recommend for your website projects! :)"
Indra Basak
Marketing · PreciX
"Derrick was conscientious, efficient and delivered on time. Communication was effective and they really understood the issues at hand. He ultimately delivered a professional looking website that exceeded expectations."
Miles Owen
Head of Digital · FMpay
"As I grow in my business, I need services to grow with, Derrick is that service when it comes to my website. He is patient, listens and takes onboard the changes I want in a timely manner. My website changes and develops with the needs of my clients and my offer which is great. He also brings new ideas and perspectives in how to improve and grow in line with my goals and business needs. I look forward seeing how this new phase develops."
Karin Young
Psychotherapist · Karin Counselling
"Derrick has been a great help in getting our SaaS website up and running. He is very knowledgeable in Webflow and was able to help us get the most out of the platform. His design skills are excellent and he was able to create a custom function-filled website that looks great and operates perfectly. I would highly recommend Derrick to anyone looking for a web designer who knows his stuff!"
Taita Ngetich
CEO · Synnefa
"Derrick is just great to work with! He's super fast, always responds in a timely manner, and is very flexible with last-minute requests. His Webflow development skills are rock solid and he has no problems keeping up with the fast pace of early-stage startups."
Carla Nassisi
Growth · Briink
"It has been a pleasure to work with Derrick! He delivered a pixel-perfect website for LLI, which not only looks and performs well but is also very organised and simple to maintain! During the process, he had the patience to clear all the incoming doubts that occurred when we were transitioning from one platform to another, and he not only delivered a great site but also tutorials on how to manage it."
Isabelle Krauze
UX Lead · LLInformatics
"Derrick is a gem of a person and a wealth of knowledge. He was so patient and helpful when explaining the more intricate parts of Webflow and bouncing around different possible solutions. He really knows the ins and outs of Webflow — it's no wonder that he's a certified Webflow Expert! I'm looking forward to the day when I get to work with him again."
Diana Donaldson
CEO · Be Indigo
"Derrick helped us redesign and build our site on Webflow and we couldn't be more pleased with the entire project. Derrick is very easy to communicate with, fast and efficient, and takes time to ask questions and provide suggestions where necessary. He has a great balance of technical and visual knowledge, which helped us build a fast, SEO-optimized site that looks great and is on-brand. Would happily hire Derrick again!"
Eliza Gerland
Strategic Marketer · UFODrive
"Derrick and his team were wonderful to work with and helped us a lot with launching multiple Webflow projects in addition to doing a full website backend revamp. Recommend him to anyone!"
Liza Moiseeva
CMO · Commons
"Derrick and his colleague were tasked with helping to implement new designs for our Home and Product pages on our website. We had a super tight deadline and they took it in their stride. Their communication throughout the project was great and the results were fantastic. Would highly recommend."
Marcus Vitelli
Brand Executive · Flexciton
"Derrick translated our ideas into visually stunning designs. He took our vision for Mirador Local's online presence and brought it to life in a way that exceeded our expectations. I highly recommend him to anyone seeking a talented and reliable designer for their next project."
Gerry White
Global Growth · Mirador
"Derrick has a solid and broad understanding of Webflow and has delivered huge improvements to our website."
Tim Sater
Marketing Lead · Provenance
"Derrick and his team did a great job building our marketing site and leaving us with the tools to sustainably iterate on our website. They didn't stop until the site perfectly matched our design vision. We would definitely work with them again!"
John Outwater
Data Visualization · Renoster
"Derrick made our vision a reality, he's simply a brilliant website developer. We're incredibly happy with the results, which match the designs. If you're a startup or scale-up looking for an excellent web developer to turn your ideas into reality, look no further!!"
Ben Leftley
Senior Delivery Manager · Unmind
"It was great working with Derrick’s team! Communication was smooth and the website ideation, design and development were executed well without much hiccups. Will highly recommend for your website projects! :)"
Indra Basak
Marketing · PreciX
"Derrick was conscientious, efficient and delivered on time. Communication was effective and they really understood the issues at hand. He ultimately delivered a professional looking website that exceeded expectations."
Miles Owen
Head of Digital · FMpay
"As I grow in my business, I need services to grow with, Derrick is that service when it comes to my website. He is patient, listens and takes onboard the changes I want in a timely manner. My website changes and develops with the needs of my clients and my offer which is great. He also brings new ideas and perspectives in how to improve and grow in line with my goals and business needs. I look forward seeing how this new phase develops."
Karin Young
Psychotherapist · Karin Counselling
"Derrick has been a great help in getting our SaaS website up and running. He is very knowledgeable in Webflow and was able to help us get the most out of the platform. His design skills are excellent and he was able to create a custom function-filled website that looks great and operates perfectly. I would highly recommend Derrick to anyone looking for a web designer who knows his stuff!"
Taita Ngetich
CEO · Synnefa
"Derrick is just great to work with! He's super fast, always responds in a timely manner, and is very flexible with last-minute requests. His Webflow development skills are rock solid and he has no problems keeping up with the fast pace of early-stage startups."
Carla Nassisi
Growth · Briink
"It has been a pleasure to work with Derrick! He delivered a pixel-perfect website for LLI, which not only looks and performs well but is also very organised and simple to maintain! During the process, he had the patience to clear all the incoming doubts that occurred when we were transitioning from one platform to another, and he not only delivered a great site but also tutorials on how to manage it."
Isabelle Krauze
UX Lead · LLInformatics
"Derrick is a gem of a person and a wealth of knowledge. He was so patient and helpful when explaining the more intricate parts of Webflow and bouncing around different possible solutions. He really knows the ins and outs of Webflow — it's no wonder that he's a certified Webflow Expert! I'm looking forward to the day when I get to work with him again."
Diana Donaldson
CEO · Be Indigo
"Derrick helped us redesign and build our site on Webflow and we couldn't be more pleased with the entire project. Derrick is very easy to communicate with, fast and efficient, and takes time to ask questions and provide suggestions where necessary. He has a great balance of technical and visual knowledge, which helped us build a fast, SEO-optimized site that looks great and is on-brand. Would happily hire Derrick again!"
Eliza Gerland
Strategic Marketer · UFODrive
"Derrick and his team were wonderful to work with and helped us a lot with launching multiple Webflow projects in addition to doing a full website backend revamp. Recommend him to anyone!"
Liza Moiseeva
CMO · Commons
"Derrick and his colleague were tasked with helping to implement new designs for our Home and Product pages on our website. We had a super tight deadline and they took it in their stride. Their communication throughout the project was great and the results were fantastic. Would highly recommend."
Marcus Vitelli
Brand Executive · Flexciton
"Derrick translated our ideas into visually stunning designs. He took our vision for Mirador Local's online presence and brought it to life in a way that exceeded our expectations. I highly recommend him to anyone seeking a talented and reliable designer for their next project."
Gerry White
Global Growth · Mirador
"Derrick has a solid and broad understanding of Webflow and has delivered huge improvements to our website."
Tim Sater
Marketing Lead · Provenance
"Derrick and his team did a great job building our marketing site and leaving us with the tools to sustainably iterate on our website. They didn't stop until the site perfectly matched our design vision. We would definitely work with them again!"
John Outwater
Data Visualization · Renoster
"Derrick made our vision a reality, he's simply a brilliant website developer. We're incredibly happy with the results, which match the designs. If you're a startup or scale-up looking for an excellent web developer to turn your ideas into reality, look no further!!"
Ben Leftley
Senior Delivery Manager · Unmind
"It was great working with Derrick’s team! Communication was smooth and the website ideation, design and development were executed well without much hiccups. Will highly recommend for your website projects! :)"
Indra Basak
Marketing · PreciX
"Derrick was conscientious, efficient and delivered on time. Communication was effective and they really understood the issues at hand. He ultimately delivered a professional looking website that exceeded expectations."
Miles Owen
Head of Digital · FMpay
Dictionary API FAQs
Common questions about using Dictionary API with Webflow.
You can implement this with a small custom JavaScript snippet that listens for hover events on marked-up words, calls the Merriam-Webster API, and renders the definition in an absolutely positioned tooltip element Mark your vocabulary words with a custom CSS class or data attribute in Webflow, and your script handles the API call and tooltip display Cache frequent lookups in a JavaScript object to avoid redundant API calls within a single session.
Yes, the API returns URLs for audio pronunciation files that you can embed as HTML audio elements When a user clicks a speaker icon next to a word, your JavaScript fetches the audio URL from the API response and plays it For frequently looked-up words, consider pre-fetching and caching the audio URLs to eliminate the API call delay and provide instant playback.
The Collegiate Dictionary API returns definitions, part of speech, etymology, example sentences, and pronunciation data The Collegiate Thesaurus API returns synonyms, antonyms, related words, and near-antonyms Many Webflow educational sites use both: the Dictionary for inline definitions and the Thesaurus for vocabulary-building exercises and writing tools where users explore word relationships.
The Merriam-Webster API has request limits that vary by plan tier For high-traffic Webflow sites, implement a caching layer: store API responses in a server-side cache (Redis, a database, or even a static JSON file) with a reasonable TTL Your Webflow frontend calls your proxy endpoint, which checks the cache before hitting the Merriam-Webster API This reduces external API calls by 90% or more for commonly looked-up words.
Yes, Merriam-Webster offers commercial licensing options beyond their free developer tier The free tier is suitable for testing and low-volume sites, but any Webflow site with significant traffic or commercial intent should use a paid plan The terms of service restrict certain uses, so review them carefully if you're building a commercial dictionary-based product rather than using dictionary data as an ancillary feature.
Need Dictionary API on your Webflow site?
I integrate tools like this for clients all the time. Talk to me about your setup.