onion
US /ˈʌn.jən/
UK /ˈʌn.jən/

1.
cebolla
a pungent, edible bulb used as a vegetable, having a layered structure and a papery skin.
:
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Chop the onion finely for the sauce.
Pica la cebolla finamente para la salsa.
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The smell of fried onions filled the kitchen.
El olor a cebollas fritas llenó la cocina.