火口: the origin of a fire; an opening for ignition; the nozzle of a welder, etc; the opening through which the fire enters the barrel in a hinawajū; (volcanology) a crater / 杼口: / 樋口:

樋口: a surname

close friend, bosom buddy / crony, chum

the origin of a fire / an opening for ignition / the nozzle of a welder, etc / the opening through which the fire enters the barrel in a hinawajū / (volcanology) a crater

(chiefly women's speech) first person singular pronoun: I, me

入り口, 入口: entrance

casual talk, usage of an informal speech style

出口: exit

野口, 埜口: a surname

降り口: an exit involving descent