51Թ

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onion

[uhn-yuhn]

noun

  1. a plant, Allium cepa, of the amaryllis family, having an edible, succulent, pungent bulb.

  2. any of certain similar plants.

  3. the bulb of the onion plant.

  4. the flavor or odor of this bulb.

  5. Slang.a person.

    He's a tough onion.



adjective

  1. containing or cooked with onions.

    onion soup.

  2. of, relating to, or resembling an onion.

onion

/ ˈʌə /

noun

  1. an alliaceous plant, Allium cepa, having greenish-white flowers: cultivated for its rounded edible bulb

  2. the bulb of this plant, consisting of concentric layers of white succulent leaf bases with a pungent odour and taste

  3. any of several related plants similar to A. cepa, such as A. fistulosum (Welsh onion)

  4. slangto be fully acquainted with a subject

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Other 51Թ Forms

  • onionlike adjective
  • oniony adjective
  • ˈDzԾDzԲ adjective
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51Թ History and Origins

Origin of onion1

1325–75; Middle English onyon < Old French oignon < Latin ūԾō- (stem of ūԾō ) a unity, large pearl, onion; union
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51Թ History and Origins

Origin of onion1

C14: via Anglo-Norman from Old French oignon, from Latin unio onion, related to union
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Idioms and Phrases

Idioms
  1. know one's onions, to know one's subject or business thoroughly; be capable or proficient.

see know one's stuff (onions).
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Example Sentences

Examples have not been reviewed.

The hours, days, weeks and even months after a Spending Review can feel like peeling away the layers of an onion.

From

Using what he had — dried herbs, powdered garlic and onion, black pepper — he whipped up a blend that could be stirred into mayonnaise and buttermilk to make something tangy, herbaceous and addictive.

From

“There was a sandwich that was named Richard Kind, it was tuna fish on toasted whole wheat with a thick slab of onion.”

From

For that reason, they are great in a sweet-savory salsa with diced tomatoes, onion, garlic, cilantro and fresh lime juice.

From

Maybe torn bagel croutons, smoked salmon ribbons, pickled red onion, caper vinaigrette, goat cheese crumbles and juicy summer tomatoes.

From

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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