- 1number 60
- 2noun the sixties [plural] numbers, years, or temperatures from 60 to 69 Idioms
between the ages of 60 and 69
NAmE//ˈsɪkstiəθ//
ordinal number, noun There are examples of how to use ordinal numbers at the entry for fifth.See sixty in the Oxford Advanced Learner's DictionaryCheck pronunciation: sixty