noun
important duty; heavy responsibility; responsible post
Refers to a position or task that carries significant weight and accountability. Often used in formal or professional contexts.
彼は会社で重任を担っている。
He bears a heavy responsibility at the company.
そのポストは非常に重任だ
That post is a very responsible position.
noun, noun or participle which takes 'suru'
Specifically means being appointed again to the same or a similar position. Used with する to mean 'to reappoint' or 'to be reappointed'.
会長に重任することが決まった。
It was decided that he would be reappointed as chairman.
彼は取締役に重任された。
He was reappointed as a director.