Meaning of “onion” in the English Dictionary

british dictionary

"onion" in British English

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onionnoun [ C or U ]

uk /ˈʌn.jən/ us /ˈʌn.jən/

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.

More examples

  • Lightly brown the onion before adding the tomatoes.
  • Fry the onions till they start to colour.
  • You should have seen the onions he grew for the competition - they were monsters!
  • The onions had been pickled in brine.
  • Roughly chop the tomatoes and add to the onions.

(Definition of “onion” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"onion" in American English

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onionnoun [ C ]

us /ˈʌn·jən/

a plant with a round, edible root having a strong smell and flavor

(Definition of “onion” from the Cambridge Academic Content Dictionary © Cambridge University Press)