“One's duty” in Japanese
Short answer
One's duty in Japanese is “本分” (honbun). Full meaning: one's duty, one's part.
Other ways to say “One's duty” in Japanese
職責
shokuseki one's duty, responsibilities pertaining to one's work
職分
shokubun one's duty, vocation
本領
honryou characteristic quality, special character, one's real ability, one's specialty; one's function, one's duty; fief, inherited estate
成すべきこと
nasubekikoto things to do, must-do items, one's duty, what is required
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