twelve
Americannoun
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a cardinal number, 10 plus 2.
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a symbol for this number, as 12 or XII.
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a set of this many persons or things.
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the Twelve, the 12 apostles chosen by Christ.
adjective
noun
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the cardinal number that is the sum of ten and two See also number
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a numeral, 12, XII, etc, representing this number
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something represented by, representing, or consisting of 12 units
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Also called: twelve o'clock. noon or midnight
determiner
Other Word Forms
Noun Inflected Forms
Etymology
Origin of twelve
before 900; Middle English twelve, inflected form of twelf, Old English twelfe literally, (ten and) two leave, i.e., two left over; cognate with Old Frisian twelef, twelf, Old High German zwelif, Old Norse tōlf, Gothic twalif; compare Lithuanian dvýlika; see two, leave 1, eleven
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.
It has cookie dough, because sometimes hospitality means baking twelve cookies for friends, and sometimes it means baking two for yourself while standing barefoot in the kitchen.
From Salon • Jul. 11, 2026
Researchers identified bones there belonging to at least twelve Neanderthals.
From Science Daily • Jul. 7, 2026
Going back as far as 1900, in the last twelve months alone, S&P 500’s earnings have jumped from 26% above trend to 57% and yet earnings multiples have continued to expand, they noted.
From MarketWatch • Jun. 29, 2026
Profit boosting measures should increase the underlying operating margin by around 2% in 2027 from the twelve months to March 2026, with further improvement from 2028 and beyond, it added.
From The Wall Street Journal • Jun. 16, 2026
They stretched back twelve rows, with two seats per row on the left side of the aisle and one each on the right.
From "Found" by Margaret Peterson Haddix
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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.