plural eighties
plural eighties
Learner's definition of EIGHTY
1
[count] : the number 80(数字)八十
2 eighties [plural]
a : the numbers ranging from 80 to 89八十几 b : a set of years ending in digits ranging from 80 to 89八十年代;八十多岁 — eightieth
/ˈeɪtijəθ/ noun, plural eightieths [count]