|Origin:||eahtatig, from eahta 'eight'|
the number 80
2 [plural] also the '80s, the 1980s
the years from 1980 to 1989:
The band was incredibly successful in the eighties.
the early/mid/late eighties
Their troubles began in the mid eighties.
to be aged between 80 and 89
Hilda Simpson was a woman in her early eighties.
if the temperature is in the eighties, it is between 80 degrees and 89 degrees
in the low/mid/high eighties
The temperature is expected to remain in the low eighties.
her eightieth birthday