The Merriam-Webster Dictionary API gives developers access to a comprehensive resource of dictionary and thesaurus content as well as specialized medical, Spanish, ESL, and student-friendly vocabulary. Make your applications better by integrating our authoritative definitions, etymologies, audio pronunciations, synonyms and antonyms, and more. Our robust API empowers developers to enhance word games and create educational, language learning, and other word-related applications for the digital environment. We look forward to seeing all of the new, innovative products powered by Merriam-Webster's trusted references.
The Merriam-Webster Dictionary API is free as long as it is for non-commercial use, usage does not exceed 1000 queries per day per API key, and use is limited to two reference APIs.
If your app is for commercial use (either monetized via ads or a paid fee), please contact us directly so we can approve use and develop business terms on a case-by-case basis.
These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.