four
Americannoun
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a cardinal number, three plus one.
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a symbol of this number, 4 or IV or IIII.
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a set of this many persons or things.
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a playing card, die face, or half of a domino face with four pips.
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Jazz. fours, alternate four-bar passages, as played in sequence by different soloists.
with guitar and piano trading fours.
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Automotive.
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an automobile powered by a four-cylinder engine.
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the engine itself.
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adjective
idioms
noun
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the cardinal number that is the sum of three and one
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a numeral, 4, IV, etc, representing this number
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something representing, represented by, or consisting of four units, such as a playing card with four symbols on it
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Also called: four o'clock. four hours after noon or midnight
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cricket
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a shot that crosses the boundary after hitting the ground
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the four runs scored for such a shot
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rowing
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a racing shell propelled by four oarsmen pulling one oar each, with or without a cox
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the crew of such a shell
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determiner
Etymology
Origin of four
before 1000; Middle English four, fower, Old English fēower; cognate with Old High German fior ( German vier ), Gothic fidwor; akin to Latin quattuor, Greek tésseres ( Attic téttares )
Vocabulary lists containing four
Spelling Practice 1, Unit 3
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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.
He scored in all four of the top divisions in English football before settling at Brentford in 2020.
From BBC • May 22, 2026
Nearly one in four adults over 40 lives with painful osteoarthritis, a condition that can make everyday movement difficult and is one of the major causes of adult disability.
From Science Daily • May 22, 2026
He will visit four Indian cities, beginning in Kolkata, home to one of the oldest US diplomatic posts -- which got its first consul in 1792, just 16 years after Washington's independence.
From Barron's • May 22, 2026
I drank out of it during every remote interview for this job four years ago and consider it good luck!
From The Wall Street Journal • May 22, 2026
The sun’s frail light no longer broke the canopy, and in the deepening shadows, the faint glow of the four realms was beginning to appear.
From "The Undead Fox of Deadwood Forest" by Aubrey Hartman
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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.