Eighty

//ˈeɪ.ti// num

num ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    the cardinal number that is the product of ten and eight wordnet
Adjective
  1. 1
    being ten more than seventy wordnet
Numeral
  1. 1
    The cardinal number occurring after seventy-nine and before eighty-one, represented in Roman numerals as LXXX and in Arabic numerals as 80.

    "Merryday, who was appointed by President Geroge^([sic]) H. W. Bush, said the complaint contains eighty pages of repetitive claims and praise for President Trump, but fails to establish the two counts of defamation alleged."

Example

More examples

"Halley's Comet comes round once every eighty years."

Etymology

Inherited from Middle English eiȝti, eyȝty, eiȝtety, aghty, from Old English hundeahtatiġ, from Proto-Germanic *ahtōutēhundą (“eighty”), equivalent to eight + -ty. Cognate with Scots hechty, auchty (“eighty”), Saterland Frisian tachentich (“eighty”), West Frisian tachtich (“eighty”), Dutch tachtig (“eighty”), Low German tachentig (“eighty”), German achtzig (“eighty”), Swedish åttio (“eighty”), Norwegian åtti (“eighty”), Icelandic áttatíu (“eighty”).

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.