prefixing element in kanji compounds, adding a meaning of later, after, following, rearward

subsequently, afterwards

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

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

(idiomatic) get angry, take offence

getting closer to success or a solution

stand up straight / stand around absentmindedly