s, 0, 1, 5, 9 are letters that make '1950s'
19, 50, 95 are words within '1950s'
1 possible definitions for '1950s'
Under this definition, 1950s is a noun and has the following properties:
fifties has the same meaning as 1950s
'1950s' can be a type of decade, decennary, decennium.