Word
eighty
US/ˈeɪti/
UK/ˈeɪti/
Definition
n. the number 80. It comes after seventy-nine and before eighty-one.
n. the cardinal number equivalent to the product of eight and ten.
Examples
“There are eighty students in the hall.”
“My grandmother is eighty years old but she still walks five miles every morning.”
“The speed limit on this stretch of the motorway is eighty kilometres per hour, though many drivers unfortunately choose to ignore the restriction.”
Examples
simple
“There are eighty students in the hall.”
contextual
“My grandmother is eighty years old but she still walks five miles every morning.”
complex
“The speed limit on this stretch of the motorway is eighty kilometres per hour, though many drivers unfortunately choose to ignore the restriction.”
Usage
Functions as a determiner when preceding a noun or as a noun when referring to the number itself.
Etymology
Inherited from Middle English eightety, eiȝti, eiȝtety, 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”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.