n. the decade from 1980 to 1989. [ WordNet 1.5 ]
2. the time of life between 80 and 90. Syn. -- mid-eighties. [ WordNet 1.5 ]
a. [ From Eighty. ] 1. The next in order after seventy-ninth. [ 1913 Webster ]
2. Consisting of one of eighty equal parts or divisions. [ 1913 Webster ]
n. The quotient of a unit divided by eighty; one of eighty equal parts. [ 1913 Webster ]
n. the time of life between 80 and 90. Syn. -- eighties. [ WordNet 1.5 ]