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.
Other Word Forms
Noun Inflected Forms
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.
Since that trade, she has been a regular in the Sparks’ starting lineup while averaging double-digit scoring and around eight rebounds per game.
From Los Angeles Times • Jul. 12, 2026
After eight years, it charges to 286 miles, or about 92% of new.
From The Wall Street Journal • Jul. 12, 2026
Yamamoto’s uncharacteristic sixth inning ended his streak of quality starts at five, including two that lasted eight innings or more.
From Los Angeles Times • Jul. 12, 2026
Following her departure from the Commons, Widdecombe appeared on BBC's Strictly Come Dancing in 2010 and was a runner-up on Celebrity Big Brother eight years later.
From BBC • Jul. 11, 2026
The job guarantees that I’m awake for at least eight hours at a stretch.
From "The Brightwood Code" by Monica Hesse
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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.