onion

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noun on·ion \ˈən-yən\

Definition of onion

  1. 1 :  a widely cultivated Asian herb (Allium cepa) of the lily family with pungent edible bulbs; also :  its bulb

  2. 2 :  any of various plants of the same genus as the onion

oniony

play \-yə-nē\ adjective

Examples of onion in a sentence

  1. The recipe calls for chopped onions.

  2. He is growing onions in the garden this year.

  3. The recipe calls for chopped onion.

Origin and Etymology of onion

Middle English, from Anglo-French oignon, from Latin union-, unio


First Known Use: 14th century


ONION Defined for English Language Learners

onion

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noun on·ion \ˈən-yən\

Definition of onion for English Language Learners

  • : a round vegetable that is usually white, yellow, or red and has a strong smell and taste


ONION Defined for Kids

onion

play
noun on·ion \ˈən-yən\

Definition of onion for Students

  1. :  the roundish edible bulb of a plant related to the lily that has a sharp odor and taste and is used as a vegetable and to season foods


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