- sixty, 60, LX - the cardinal number that is the product of ten and six
--1 is a kind of decade, decennary, decennium; large integer; decade, decennary, decennium; large integer
- sixties, mid-sixties - the time of life between 60 and 70
--2 is a kind of time of life; time of life
--2 is a part of old age, years, age, eld, geezerhood