体力

N1 年を取るにつれて体力が落ちてきたと感じる Toshi o toru ni tsurete tairyoku ga ochite kita to kanjiru I feel my stamina decreases as I age

N2 活力 katsuryoku vitality, energy N2 効力 kouryoku effect, efficacy N2 個体 kotai an individual N2 死体 shitai corpse N2 重力 juuryoku gravity N2 全力 zenryoku all one's power, whole energy N2 速力 sokuryoku speed N2 体系 taikei system, organization N2 体制 taisei order, system, structure

N4 体 tai, tei / karada, katachi body, substance, object N4 力 ryoku, riki, rii / chikara power, strength, strong