Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

onion

noun [C or U]
 
 
/ˈʌn.jən/

Definition

A2 a vegetable with a strong smell and flavour, made up of several layers surrounding each other tightly in a round shape, usually brown or red on the outside and white inside: I always cry when I'm chopping onions. Fry the onion and garlic for about two minutes.Types of vegetablePlants in general
(Definition of onion noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“onion” in other dictionaries

Word of the Day

a cloud on the horizon

something which threatens to cause problems or unhappiness in the future

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