n.
Pronunciation: ' ə n-y ə n
Function: noun
Etymology: Middle English, from Anglo-French oignon, from Latin union-, unio
Date: 14th century
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
– on · iony \ -y ə -n ē \ adjective