90s

• '90s
• 90's

90s pl (plural only)

1. The decade beginning in '90 and ending in '99 of a century, often the 1990s one.

   Synonym: nineties

2. A range of the numbers ninety (90) to ninety-nine (99).

   The temperatures today are ranging from the low to high 90s.

   I always score somewhere in the 90s on this test.

   Most people who live to be in their 90s are from Japan.

• 1890s, 1990s