(後 "spatially behind") to depart from; to leave / (後 "temporally later") to put off something, to be dealt with later

(mathematics) quod erat demonstrandum (that which was to be proved)

right now, just now, immediately

(Internet slang) a dead fad; out of fashion; no longer trendy

sagacious / genius / excellence

outstanding

(rare) a female bear; a she-bear.

excellent / splendid / swift

everything

(colloquial) current boyfriend