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.
A federal judge halted the $6.2 billion merger of television station giants Nexstar Media Group and Tegna after eight states and satellite broadcaster DirecTV sued to block the deal on antitrust grounds.
From The Wall Street Journal • Apr. 18, 2026
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
He is eventually saddled with an 0-2 record with a 6.23 ERA after piling up a 4.46 ERA in eight starts last season.
From Los Angeles Times • Apr. 17, 2026
Since then, Coventry have lost once in 13, winning eight of them.
From BBC • Apr. 17, 2026
“Let’s just go. I’m thinking we run to the nature trail, do two laps around plus an extra mile out and back, then run back home. That’s eight miles. OK?”
From "Keeping Pace" by Laurie Morrison
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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.