noun on·ion \ˈən-yən\

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

Full Definition of ONION

:  a widely cultivated Asian herb (Allium cepa) of the lily family with pungent edible bulbs; also :  its bulb
:  any of various plants of the same genus as the onion
on·iony \-yə-nē\ adjective

Examples of ONION

  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 of ONION

Middle English, from Anglo-French oignon, from Latin union-, unio
First Known Use: 14th century

Rhymes with ONION

ONION Defined for Kids


noun on·ion \ˈən-yən\

Definition of ONION for Kids

:  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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