Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


Welcome to Cambridge Dictionaries Online!

Cambridge University Press publishes a range of dictionaries for learners of English all around the world. You can search our dictionaries using the search box at the top of the page.

Bilingual English-Spanish/Spanish-English dictionary

We have just added an English–Spanish/Spanish–English bilingual dictionary to Cambridge Dictionaries Online!

If you want a Spanish translation, select “English-Spanish, inglés-español” from the list of dictionaries at the top of any page on Cambridge Dictionaries Online. If you want an English translation, select “Spanish-English, español-inglés”.

More information...

Para una traducción al español, seleccione ”English-Spanish, inglés-español” de la lista de diccionarios en la parte superior de cualquier página en Cambridge Dictionaries Online. Si desea traducir al inglés, seleccione “Spanish-English, español-inglés”.

Información en español...

Business English dictionary

We have also added our new Cambridge Business English dictionary. Select "Business English" from the dropdown at the top of any page to search this dictionary.

The Cambridge Business English Dictionary is a brand new dictionary of over 30,000 business-related words, phrases and meanings used in business and the world of work.

Including the most up-to-date vocabulary from the rapidly-evolving world of business and business English, the Cambridge Business English Dictionary is ideal for anyone studying business-related subjects and for anyone using English for their work.

More information...

American English dictionary

This new release contains an updated version of the American English Dictionary. The American English Dictionary is now fully up to date, with new words and updated definitions and examples.

You can look up a word or phrase in the American English Dictionary by selecting "American English" in the drop-down list of dictionaries in the search panel at the top of any page on Cambridge Dictionaries Online.

Learner’s dictionary

This new release contains an updated version of the Learner’s Dictionary. The Learner’s Dictionary is now fully up to date, with new words and updated definitions and examples.

The Learner’s dictionary covers all of the vocabulary that intermediate students need to make progress, with clear, easy-to-understand definitions and thousands of examples of words used in real English.

You can look up a word or phrase in the Learner's Dictionary by selecting “Learner’s” in the drop-down list of dictionaries in the search panel at the top of any page on Cambridge Dictionaries Online.


Idioms and phrasal verbs

It’s easy to find idioms and phrasal verbs.

If you’re looking for a specific idiom, such as sell like hot cakes, you can find it by typing one of the main words of the idiom into the search box. Then click on ‘Idioms’ in the ‘More Results’ box for a complete list of all idioms containing that word. Click on the idiom if you want to find out what it means.

Do the same for phrasal verbs, such as flare up – just type in the main verb and select ‘Phrasal Verbs’ in the ‘More Results’ box.

As you can find any idiom or phrasal verb this way, ‘Idioms’ and ‘Phrasal Verbs’ no longer appear in the dictionary dropdown list at the top of the page.

In other dictionaries...

“expenditure” in other dictionaries

If you search for a word, then decide you want to see what another Cambridge dictionary says about it, you can use the ‘In other dictionaries’ section on the right.

For example if you look up the definition for expenditure in British English, then want to find out what the American English dictionary says, click on ‘American English’. If you then want to find a Spanish translation for that word, click on ‘in Spanish’.


Did you mean...?

If you spell a word wrongly, you can often still find the word you’re looking for. For example, if you search for ‘interupt’ you will see a message saying that that word was not found, and offering some alternatives. If one of these is what you were looking for, click on it to go to the entry.

Easy to understand

Our definitions are written using clear, simple language and are easy to understand, which means that they are ideal for learners of English.

Examples of use

As well as definitions, the entries contain helpful example sentences which show how words are used in context. These examples are based on authentic, up-to-date English and are excellent models for writing.

Spoken pronunciation

You can click on any speaker icon to hear how the word is pronounced – red for British English, blue for American English.

Help with grammar

Unlike most dictionaries, CDO gives lots of information about the grammar of words – not just the plural form or the past tense, but also whether a verb can only be used with an object, which preposition to use, and much more.

Word of the Day

browbeat

to try to force someone to do something by threatening them or persuading them forcefully and...

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Blog

Read our blog about how the English language behaves.

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New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

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