| fiftie | My father is in his fifties. |
| fifties | (n) the decade from 1950 to 1959, Syn. 1950s |
| fifties | (n) the time of life between 50 and 60, Syn. mid-fifties |
| fiftieth | (n) position 50 in a countable series of things |
| fiftieth | (adj) the ordinal number of fifty in counting order, Syn. 50th |
| fifties | n.
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| Fiftieth | a. [ AS. fīftigoða. See Fifty. ] |
| Fiftieth | n. One of fifty equal parts; the quotient of a unit divided by fifty. [ 1913 Webster ] |