acquisition of a skill / learning of a subject

acquire a skill / learn a subject

錬成, 練成: training; strengthening / 錬成: (modern fiction) the act/use of alchemy (錬金術)

錬成, 練成: to train; to strengthen / 錬成: (modern fiction) to produce with alchemy (錬金術)

technology; technique; technical

metal

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

technician, engineer