| ninetie | My grandfather is in his nineties. |
| ninetie | Technology will make a lot of progress in the nineties. |
| nineties | (n) the decade from 1890 to 1899, Syn. 1890s |
| nineties | (n) the decade from 1990 to 1999, Syn. 1990s |
| nineties | (n) the time of life between 90 and 100, Syn. mid-nineties |
| ninetieth | (n) position 90 in a countable series of things |
| ninetieth | (adj) the ordinal number of ninety in counting order, Syn. 90th |
| nineties | n. pl.
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| Ninetieth | a. |
| Ninetieth | n. |