1To store up or set aside things or money for future use.
台風に備えて水や食料を蓄えておいた。
I stocked up on water and food in preparation for the typhoon.
老後のためにコツコツとお金を蓄えている。
I'm steadily saving up money for retirement.
冬眠する動物は秋のうちに脂肪を蓄える。
Animals that hibernate build up fat reserves during autumn.
2To gradually accumulate and internalize knowledge, experience, or skill.
若いうちにいろいろな経験を蓄えておくといい。
It's good to build up a variety of experiences while you're young.
彼女は独学で語学の知識を蓄えてきた。
She has built up her language knowledge through self-study.
長年の修行で職人は確かな技術を蓄えた。
Through years of training, the craftsman built up solid skills.
3To grow out and keep facial hair such as a beard or moustache without shaving it.
彼は数か月かけて立派なひげを蓄えた。
He spent several months growing an impressive beard.