peacock
1 Americannoun
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the male of the peafowl distinguished by its long, erectile, greenish, iridescent tail coverts that are brilliantly marked with ocellated spots and that can be spread in a fan.
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any peafowl.
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a vain, self-conscious person.
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Astronomy. Peacock, the constellation Pavo.
verb (used without object)
noun
noun
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a male peafowl, having a crested head and a very large fanlike tail marked with blue and green eyelike spots
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another name for peafowl
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a vain strutting person
verb
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to display (oneself) proudly
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obsolete to acquire (the best pieces of land) in such a way that the surrounding land is useless to others
noun
Other Word Forms
Derived Forms
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peacockerynoun
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peacockishnessnoun
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peacockismnoun
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peahennoun
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peacockishadjective
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peacockyadjective
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peacockishlyadverb
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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peacocksimple
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peacockssimple
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have peacockedperfect
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has peacockedperfect
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am peacockingprogressive
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are peacockingprogressive
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is peacockingprogressive
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have been peacockingperfect progressive
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has been peacockingperfect progressive
Past
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peacockedsimple
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had peacockedperfect
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was peacockingprogressive
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were peacockingprogressive
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had been peacockingperfect progressive
Future
Etymology
Origin of peacock
First recorded in 1250–1300; Middle English pecok, pocok equivalent to pe- ( Old English pēa “peafowl,” from Latin pāvōn-, stem of pavō peacock ( def. ) ) + cok ( Old English coc cock 1 )
Explanation
A peacock is a shiny blue bird who fans out his large colorful iridescent tail feathers, especially when he’s flirting with the peahens. A peacock is a male peafowl. A male peacock is more flamboyant than his female counterpart — he’s the one with those long brilliant tail feathers marked with eye-like designs. If a man (a human!) dresses overly flashy, he’s “peacocking.” The writer Flannery O’ Connor was famous for having peacocks strut around her farm in Georgia. Peacocks also have a loud call that sounds almost like a human cry. The word peacock has many etymological influences, and it may ultimately come from the Tamil tokei.
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
NBC’s streaming service, Peacock, has struggled to get traction.
From Los Angeles Times • Jul. 2, 2026
In recent years Peacock has struggled with profitability and has far fewer subscribers than many of its rivals.
From The Wall Street Journal • Jul. 2, 2026
Bravo remains a life boat on the sinking ship that is the cable network business and is a key content provider to Peacock.
From The Wall Street Journal • Jun. 30, 2026
Earlier this month, Peacock axed Oregon-based beauty technician Vasana Montgomery just days after it announced its slate of Islanders for the show’s eighth season.
From Los Angeles Times • Jun. 30, 2026
I wanted to seem like someone destined to perform as the Peacock in The Nutcracker.
From "The Sea in Winter" by Christine Day
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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.