(mathematics) equivalence class

cutting

an enemy / an opponent, a competitor / (historical) the other party in a lawsuit / 的: (historical) in the red-light district, a term of reference used between prostitutes and customers

的: (historical) (by extension from the red-light district usage) term of third-person reference: that guy, that one

barbarian

flute, whistle

(music, archaic, possibly obsolete) a flute, particularly the Chinese side-blown flute

-ive, -like, -ish, -ic, -ical, -y, kind of, sort of

target / bright, clear

Alternative spelling of 敵: (rare) enemy, opponent