鉄棒: a metal rod or staff

making someone even stronger

a metal rod or bo staff / (abbreviation of 金棒引き) a night watchman / (abbreviation of 金棒引き) telling tall tales or gossip; one who does such things

to use / to employ / to make use of, to apply / to spend

to open / to make (a hole)

to broaden; to become wide / to develop; to progress; to improve / (of a person) to be enlightened; to be inspired; (perfect tense) to be sharp or clever

(Internet slang, dated) Windows (an operating system)

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend