輩子

辈子
bèizi
  1. all one's life
  2. lifetime

CEDICT

Entry Composition

1 輩 bèi
  1. lifetime
  2. generation
  3. group of people
  4. class
  5. classifier for generations
  6. (literary) classifier for people
2 子 zi noun suffix, as in 椅子 yǐzi "chair"