- 1number 80
- 2noun the eighties [plural] numbers, years, or temperatures from 80 to 89 Idioms
between the ages of 80 and 89
NAmE//ˈeɪt̮iəθ//
ordinal number, noun There are examples of how to use ordinal numbers at the entry for fifth.See eighty in the Oxford Advanced Learner's DictionaryCheck pronunciation: eighty