eight

UK: /ˈeɪt/ US: /eɪt/ ,(āt)

WordReference Random House Learner's Dictionary of American English © 2025

eight /eɪt/   n. [countable]

1. a number, equal to seven plus one.
2. a symbol for this number, such as 8 or VIII.

eighth /eɪtθ, eɪθ/  adj. 

WordReference Random House Unabridged Dictionary of American English © 2025

eight  āt), n. 

1. a cardinal number, seven plus one.
2. a symbol for this number, as 8 or VIII.
3. a set of this many persons or things, as the crew of an eight-oared racing shell.
4. Games a playing card the face of which bears eight pips.
5. Automotive, Informal Terms [Informal.]
   • an automobile powered by an eight-cylinder engine.
   • an eight-cylinder engine.

adj. 

6. amounting to eight in number.

• bef. 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 októ̄, Old Irish ocht, Welsh wyth, Breton eiz, Tocharian B okt, Lithuanian aŝtuonì, Albanian tetë, Armenian uth, Persian hasht, Sanskrit aṣṭáu; apparently an old dual in form, but not clear of what

Collins Concise English Dictionary © HarperCollins Publishers::

eight / eɪt/ noun

1. the cardinal number that is the sum of one and seven and the product of two and four
   See also number1
2. a numeral, 8, VIII, etc, representing this number
3. the numeral 8 used as the lower figure in a time signature to indicate that the beat is measured in quavers
4. something representing, represented by, or consisting of eight units, such as a playing card with eight symbols on it
5. a racing shell propelled by eight oarsmen
6. the crew of such a shell
7. Also called: eight o'clock eight hours after noon or midnight
8. have one over the eight ⇒ to be drunk

determiner

1. amounting to eight
2. (as pronoun): I could only find eight

Etymology: Old English eahta; related to Old High German ahto, Old Norse ātta, Old Irish ocht, Latin octō, Greek oktō, Sanskrit astau