seventy

1. The cardinal number equal to 7 × 10.
2. seventies
   a. A decade or the numbers from 70 to 79: They became grandparents in their seventies. The temperature hovered in the seventies.
   b. often Seventies The decade from 70 to 79 in a century.

Origin:

Origin: Middle English

Origin: , from Old English -seofontig (in hundseofontig, the decad seventy, seventy); see septm̥ in Indo-European roots

Related Forms:

• sevˈen·ty adjective & pron.