eight
Americannoun
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a cardinal number, seven plus one.
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a symbol for this number, as 8 or VIII.
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a set of this many persons or things, as the crew of an eight-oared racing shell.
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a playing card the face of which bears eight pips.
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Informal.
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an automobile powered by an eight-cylinder engine.
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an eight-cylinder engine.
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adjective
noun
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the cardinal number that is the sum of one and seven and the product of two and four See also number
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a numeral, 8, VIII, etc, representing this number
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music the numeral 8 used as the lower figure in a time signature to indicate that the beat is measured in quavers
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the amount or quantity that is one greater than seven
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something representing, represented by, or consisting of eight units, such as a playing card with eight symbols on it
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rowing
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a racing shell propelled by eight oarsmen
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the crew of such a shell
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Also called: eight o'clock. eight hours after noon or midnight
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slang to be drunk
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See figure of eight
determiner
Usage
Spelling tips for 8 The word eight (8) is hard to spell because it is not spelled the way it sounds [ eyt ]. There are a number of silent letters. How to spell eight: The easiest way to remember how to spell eight is with the classic mnemonic device: “I before E, except after C, except when it’s pronounced like a long A, as in neighbor and weigh.” The collection of letters eigh often makes a long A sound. To this, you simply add the t at the end: eight.
Etymology
Origin of eight
before 1000; Middle English eighte, Old English ( e ) ahta; cognate with Dutch acht, Old Saxon, Old High German ahto ( German acht ), Old Norse ātta, Gothic ahtau, Latin octō, Greek oktṓ, Old Irish ocht, Welsh wyth, Breton eiz, Tocharian B okt, Lithuanian aštuonì, Albanian tetë, Armenian uth, Persian hasht, Sanskrit aṣṭáu; apparently an old dual in form, but not clear of what
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.
Gwynne survived; Ellen’s remains were found eight days after the flood and nearly 10 miles down the river.
From The Wall Street Journal • Apr. 18, 2026
American mahjong, nationalized by Jewish women, adds eight jokers, an elaborate tile-trading process called “the Charleston” and a dizzying card that changes annually and lists 70-odd winning lines—which can produce more than 1,000 combinations.
From The Wall Street Journal • Apr. 17, 2026
The final moments of the finale jumps eight years.
From Los Angeles Times • Apr. 17, 2026
Since then, Coventry have lost once in 13, winning eight of them.
From BBC • Apr. 17, 2026
It was ten till eight, and my test was supposed to start at eight clear across campus.
From "Glitch" by Laura Martin
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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.