What does eight mean?
Eight is the cardinal number following seven and preceding nine, written as the digit 8. It functions chiefly as a noun, naming both the quantity itself and any group of eight people or things — as in 'a team of eights'. The word also carries several specialized senses: in rowing, an 'eight' is a long racing shell powered by eight rowers and steered by a coxswain, one of the sport's most prestigious boat classes; on a clock face, 'eight' denotes the hour of eight o'clock; and in card games it refers to a playing card bearing eight pips. Beyond its numerical core, eight has rich cultural resonance: it appears in idioms such as 'behind the eight ball', evokes infinity when rotated sideways as the symbol ∞, and is considered lucky in Chinese culture because it sounds like the word for prosperity. Derived forms include the ordinal 'eighth' and the fraction 'one-eighth'. Its cognates trace back through Latin 'octo' to ancient Indo-European roots shared by words like octet and October.
The cardinal number equivalent to the sum of six and two; a group or set of eight people or things.
"There were only eight chairs for ten guests."
Used attributively ('eight players') without change in form; takes the plural 'eights' when referring to multiple groups or instances.
An eight-oared racing boat, or the crew that rows it.
"Oxford's blue boat won the eight by half a length."
Chiefly British usage in the context of university and competitive rowing.
The plural 'eights' refers to multiple groups of eight, multiple instances of the digit, or multiple rowing boats/crews.
"The children practised counting in eights to learn their times tables."
In rowing, 'the eight' is the largest and fastest Olympic boat class — eight rowers plus a coxswain powering a shell nearly 60 feet long.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of eight
The English word 'eight' descends from Old English 'eahta', which traces back to Proto-Germanic '*ahtōu' and ultimately to the Proto-Indo-European root '*oḱtō(w)'. This same ancient root produced Latin 'octo' and Greek 'oktō', making 'eight' a true cognate of words like 'octet', 'octave', 'October', and 'octopus'. The spelling with '-ei-' was influenced by Old Norse 'átta' during the Middle English period, while the modern pronunciation reflects regular sound changes that left the final consonant silent.
Related word forms
How eight is actually used
Neutral register and universally understood. In British English, times such as 'eight' typically imply 'eight o'clock'. In informal American English, the idiom 'behind the eight ball' means being at a disadvantage. The plural is 'eights', used when counting groups or referring to multiple rowing boats.
Easily confused with eight
'Eight' is the number 8, while 'ate' is the past tense of the verb 'eat' — they sound identical but differ completely in meaning and spelling.