1. with all one's strength [might]; to the best of one's ability
    • 精一杯働く
    • work as hard as possible [one can]
    • 精一杯のことはやってみましょう
    • I will do my best./《口》 I'll give it all I've got.
    • 子供たちを食べさせるのが精一杯だった
    • It was all I could do to feed my children.
    • これが精一杯の譲歩です
    • This is the limit ― I can't compromise any further./This is the most I can concede.