plural onions
1
: a widely cultivated Asian herbaceous plant (Allium cepa) of the amaryllis family that has a pungent edible bulb and that is closely related to the garlic, chive, and leek
also
: its bulb
2
: any of various usually ornamental alliums (such as Allium amplectens or A. caeruleum) related to 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.
Recent Examples on the Web
Turn the beloved French Dip – roast beef, caramelized onions, creamy provolone cheese – into sliders for a great make-and-take lunch idea.
—
Lisa Cericola, Southern Living, 14 July 2025
Hannah's Alfredo Veggie Melt: Crunchy Thin Crust, Alfredo sauce, spinach, feta, green peppers, onions, mushrooms and Parmesan/Asiago cheese.
—Suzanne Blake, MSNBC Newsweek, 14 July 2025
On a balcony, on the edge of the subway platform, while chopping an onion with a large, sharp knife.
—Clare Sestanovich, New Yorker, 13 July 2025
Tuesday, July 22, Ground Beef & Bean Chili with cheese and onion, whole grain cornbread, Romaine salad and tomatoes, mixed fruit, milk.
—Ramona Sentinel, San Diego Union-Tribune, 9 July 2025
See All Example Sentences for onion
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Lisa Cericola, Southern Living, 14 July 2025
Hannah's Alfredo Veggie Melt: Crunchy Thin Crust, Alfredo sauce, spinach, feta, green peppers, onions, mushrooms and Parmesan/Asiago cheese.
—Suzanne Blake, MSNBC Newsweek, 14 July 2025
On a balcony, on the edge of the subway platform, while chopping an onion with a large, sharp knife.
—Clare Sestanovich, New Yorker, 13 July 2025
Tuesday, July 22, Ground Beef & Bean Chili with cheese and onion, whole grain cornbread, Romaine salad and tomatoes, mixed fruit, milk.
—Ramona Sentinel, San Diego Union-Tribune, 9 July 2025
See All Example Sentences for onion
Cite this Entry
“Onion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onion. Accessed 21 Jul. 2025.
Copy CitationKids Definition
onion
noun
on·ion
ˈən-yən 
: a widely grown Asian herb related to the lilies and having edible bulbs that have a sharp odor and taste and are used as a vegetable and to season foods
also
: its bulb
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