(Buddhism) the age of decadence, the last days of the Law of Buddhism

Kyūjitai form of 鉄砲 (“gun”)

merger, union, confederation / annexation, amalgamation

professional athlete

everything

(colloquial) current boyfriend

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

everyone, one and all

profiling (forensic science of constructing an outline of a person's individual characteristics)

profile