Level 2 · word 1,560 of 20,000

eightieth

/ˈeɪtiəθ/ American
  • num. 第八十, 八十分之一
Definition
  • num. the number 80 in a series, or one of eighty equal parts
Example
My grandmother just celebrated her eightieth birthday with the whole family.
我奶奶刚和全家人一起庆祝了她八十岁生日。