Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “crucial”

See all translations

crucial

adjective uk   /ˈkruː.ʃəl/ us  
B2 extremely important or necessary: a crucial decision/question Her work has been crucial to the project's success. [+ that] It is crucial that the problem is tackled immediately.
More examples
crucially
adverb uk   /-i/ us  
Translations of “crucial”
in Korean 결정적인…
in Arabic حاسِم…
in French crucial…
in Turkish kritik, çok önemli…
in Italian cruciale, determinante…
in Chinese (Traditional) 至關重要的, 關鍵的, 決定性的…
in Russian ключевой, решающий…
in Polish kluczowy…
in Spanish crucial…
in Portuguese crucial…
in German entscheidend…
in Catalan crucial…
in Japanese 非常に重要な…
in Chinese (Simplified) 至关重要的, 关键的, 决定性的…
(Definition of crucial from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of crucial?
Add Cambridge dictionaries to your browser to your website

Definitions of “crucial” in other dictionaries

Word of the Day

glacial

made or left by a glacier

Word of the Day

Let’s celebrate! (words and phrases for parties)

by Kate Woodford,
December 17, 2014
​​​ With Christmas and New Year almost upon us, we thought it a good time to look at the language of parties and celebrations. First, let’s start with the word ‘party’ itself. To have or throw a party or, less commonly, to give a party is to arrange a party: We’re having a

Read More 

cinderella surgery noun

December 15, 2014
cosmetic surgery to the feet We have all heard of people having nose jobs, boob jobs and liposuction – but now a new trend growing in popularity in America: Cinderella surgery.

Read More