Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Adjective: 90
  1. Being ten more than eighty
    - ninety, xc
Noun: 90
  1. The cardinal number that is the product of ten and nine
    - ninety, XC

Derived forms: 90s

See also: cardinal

Type of: large integer

Encyclopedia: 90,000 BP