Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


dictionary noun

Click to hear the UK pronunciation of this wordClick to hear the US pronunciation of this word/ˈdɪk.ʃən.ər.i//-er.i/ n [C]

Definition

a book that contains a list of words in alphabetical order with their meanings explained or written in another language, or a similar product for use on a computer
a French-English/English-French dictionary
a bilingual/monolingual dictionary
To check how a word is spelt, look it up in a dictionary.
a book which gives information about a particular subject, in which the entries (= words or phrases) are given in alphabetical order
a biographical/science dictionary
a dictionary of quotations

(Definition of dictionary noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

NEW “dictionary” in other dictionaries

Word of the Day

be plain sailing

to be easy and without problems

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

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

Learn More