duty-bound

listen to the pronunciation of duty-bound
English - English
emphasis If you say you are duty-bound to do something, you are emphasizing that you feel it is your duty to do it. I felt duty bound to help
under a moral obligation to do something
duty-bound(p)
under a moral obligation to do something
dutybound
Compelled by duty

The captain was dutybound to see all passengers off the sinking ship before he left it himself.

duty bound
required by an obligation
duty-bound
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