Definitions from Wiktionary ( )

▸ adjective:  (postpositive, followed by "for") Having the duty of taking care of something; answerable for an act performed or for its consequences; accountable; amenable, especially legally or politically.
▸ adjective:  (postpositive, followed by "for") Being a primary cause of a situation or action and thus able to be blamed or credited for it.
▸ adjective:  (followed by "to") Answerable to (a superior).
▸ adjective:  (of a job or position) Involving important duties; involving a degree of personal accountability on the part of the person concerned.
▸ adjective:  Having good judgment in decision-making.
▸ adjective:  Able to be trusted; reliable; trustworthy.
▸ adjective:  Capable of rational conduct and thus morally accountable for one's behavior.
▸ noun:  (archaic) The individual who bears the responsibility for something.
▸ noun:  (theater) An actor taking on the lesser roles in repertory theatre.

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