Nest egg
01
貯蓄, 巣の卵
money that is put aside as savings for the future or special occasions
Idiom
例
She saved diligently to build a substantial nest egg for her retirement.
彼女は退職後のためのかなりの蓄えを作るために勤勉に貯金した。
02
人工卵, 産卵誘導装置
device consisting of an artificial egg left in a nest to induce hens to lay their eggs in it
