eighth
n.n. the position of number eight in a series. You use it when something comes after the seventh item and before the ninth.
n. the ordinal number corresponding to the cardinal number eight. Functions as both a determiner and a noun in most syntactic contexts.
He finished in eighth place in the race.
The eighth chapter of the book provides a detailed summary of the main characters' motivations.
By the eighth day of the expedition, the team had exhausted their primary supplies and were forced to rely on the emergency rations they had cached earlier.
Inherited from Middle English eightethe, from Old English eahtoþa, from Proto-Germanic *ahtudô; equivalent to eight + -th (ordinal suffix).
Commonly used as an ordinal number; when used as a noun to mean a fraction, it is countable.
eighttheighthThe spelling is irregular; the 't' from 'eight' and the 'th' suffix merge into a single 'th'.