Simple Definition of onion
: a round vegetable that is usually white, yellow, or red and has a strong smell and taste
Full Definition of onion
1 : a widely cultivated Asian herb (Allium cepa) of the lily family with pungent edible bulbs; also : its bulb
2 : any of various plants of the same genus as the onion
Examples of onion in a sentence
The recipe calls for chopped onions.
He is growing onions in the garden this year.
The recipe calls for chopped onion.
Origin of onion
Middle English, from Anglo-French oignon, from Latin union-, unio
First Known Use: 14th century
ONION Defined for Kids
Definition of onion for Students
: 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
Seen and Heard
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