(idiomatic) deceased person

welcome home (said by a person greeting another coming back home, a stock phrase required by the Japanese etiquette)

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

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

(colloquial) current boyfriend

everything

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

everyone, one and all

representing relationship to a family

house of something, place where some business is conducted / person who does that thing