Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “dictionary”

See all translations

dictionary

noun [C] uk   /ˈdɪk.ʃən.ər.i/ us    /-er.i/
A1 a book that contains a list of words in alphabetical order and that explains their meanings, or gives a word for them in another language; a similar product for use on a computer: a French-English/English-French dictionary a bilingual/monolingual dictionary To check how a word is spelled, look it up in a dictionary. a book that 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
More examples
Translations of “dictionary”
in Korean 사전…
in Arabic قاموس, مُعْجَم…
in French dictionnaire…
in Turkish sözlük…
in Italian dizionario…
in Chinese (Traditional) 字典,詞典, 專業詞典…
in Russian словарь…
in Polish słownik…
in Spanish diccionario…
in Portuguese dicionário…
in German das Wörterbuch…
in Catalan diccionari…
in Japanese 辞書…
in Chinese (Simplified) 字典,词典, 专业词典…
(Definition of dictionary from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of dictionary?
Add Cambridge dictionaries to your browser to your website

Definitions of “dictionary” in other dictionaries

Word of the Day

christmassy

typical of Christmas, or happy because it is Christmas

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

tweleb noun

December 22, 2014
informal a Twitter celebrity; (more specifically, someone who has more than 1,000 followers on Twitter) There were a few old and a few new faces, including a tweleb or two. Expect to see and hear more from these cool kids.

Read More