nineties

The decade from 1890 to 1899.

The decade from 1990 to 1999.

The time of life between ages 90 and 100.

Plural form of ninety.

The decade of the 1890s, 1990s, etc.

The decade of one’s life from age 90 through age 99.

the decade from 1990 to 1999

the time of life between 90 and 100

the decade from 1890 to 1899