sixty

(sĭksˈtē)

1. The cardinal number equal to 6 × 10.
2. sixties
   a. A decade or the numbers from 60 to 69: They planned to retire in their sixties. The breeze kept the temperature in the sixties.
   b. often Sixties The decade from 60 to 69 in a century.

Related Forms:

• sixˈty adjective & pron.