(historical) a special police force organized by the shogunate during the Bakumatsu period

Alternative spelling of 新選組 (Shinsengumi): a special police force organized by the shogunate during the Bakumatsu period

give rise to innumerable changes

eternally unchanging

(baseball) an eye for discerning whether a pitch is a strike or not

expert, special

(mathematics) linear algebra

war (conflict involving organized use of arms)

an upperclassman / an older alumnus (graduate) of one’s school / a person who entered one’s workplace earlier; a senior; one who has seniority / an elder (one who is older)

Chinese emperor sacrifice ceremony / Chinese emperor abdicating the throne / meditative concentration / dhyana, Zen Buddhism