Frequently asked questions

Frequently asked questions

The Oxford Dictionaries API has a number of flexible plans to suit all types of application. Registration is free and you can get started using the data straight away with your unique App ID and App Key. If you want to try out the API before registering, the live documentation offers a playground to try real calls and view the data, but you will need to register in order to experience the full features and capability of the API.

The Oxford Dictionaries API offers an easy way to access powerful lexical data (words, definitions, translations, audio pronunciations, synonyms, antonyms, parts of speech etc.) to use in your apps and websites. Our mission is to extend learning and education worldwide, so there are very few usage restrictions for the API and our data, but please read our Terms & Conditions before signing up. If you are unsure about anything just let us know and we'll be happy to discuss a solution for you.

As well as having dictionaries in the some of the biggest languages, we are committed to building content in 100 of the world's digitally under-represented languages as part of our Oxford Global Languages initiative. In the API, we so far have content in English, Spanish, Romanian, isiZulu, Northern Sotho, Latvian, Malay, Indonesian...and many more, and we're adding more all the time. Take a look at our supported languages page for the most up-to-date list.

If you’re looking for a dictionary dataset for a language which isn’t currently available via the API, we might still be able to help. We have over 35 language datasets, from Afrikaans to Vietnamese, available to license via Oxford Dictionaries Licensing. Please contact us for more information.

We are continually developing the API, and will be adding more datasets soon. Contact us to sign up for the API newsletter to be notified when we add new datasets to the Oxford Dictionaries API. We’d also love to hear about which languages you’d like to be able to access via the API.

We also have over 35 language datasets, from Afrikaans to Vietnamese, available to license via Oxford Dictionaries Licensing. We are also building content in 100 of the world's languages, many of which are digitally under-represented, as part of our Oxford Global Languages initiative. If you are interested in licensing this content, please contact us for more information.

The Oxford Dictionaries API provides access to our current English dictionaries which are available on

This is our most comprehensive current English dictionary dataset and includes enhanced, updated versions of the Oxford Dictionary of English and the New Oxford American Dictionary. It includes more than 350,000 entries and is regularly updated with new words, senses, and definitions.

Try our detailed live documentation to find instructions on how to use the Oxford Dictionaries API and use it in real time.

You are free to use Oxford Dictionaries content in your commercial (paid-for) application and can use 'Powered by Oxford Dictionaries' wording without prior approval. Other restrictions may apply, so please consult the Terms & Conditions first. If you have any questions, please contact us and we will be happy to help.

Caching is available on all our paid, research, and enterprise plans, but please contact us first to discuss your requirements. We'll be happy to help.

We offer a number of flexible free and paid plans to suit all types of application, based on the number of requests you expect to send to the API and whether you need to cache any data. There is no long term commitment required and you can change plans at any time.

Can't find what you’re looking for? Contact us