spinning / rotating / turning

戦闘力: fighting strength, fighting ability

先駆者: trailblazer, pioneer

戦闘服: a battle or combat uniform: fatigues, battledress

新選組, 新撰組: Shinsengumi (special police force organized by the shogunate during the Bakumatsu period)

a lucky day, auspicious day

(rare) one's birthday

Saturday

the first day of the month (solar or lunar calendar)

(literary) one day, 24 hours / (literary) the daytime, the period from dawn until dusk / (literary) (figuratively) a short period of time