責任【せきにん】
duty, responsibility (incl. supervision of staff), liability, onus
任務【にんむ】
duty, function, office, mission, task
任せる【まかせる】
to leave (a matter, decision, etc. to someone), to entrust (to someone), to entrust (someone) with, to leave (to chance, one's imagination, etc.), to let (take its own course), to let (happen), to give (oneself to something), to use (money, strength, spare time, etc.) to the full, to use freely, to use without reserve
主任【しゅにん】
person in charge, senior staff, manager, chief, head
責任者【せきにんしゃ】
person in charge (including a supervisory role for other staff), person responsible for ..., responsible party, supervisor, manager
お任せ【おまかせ】
leaving (a decision, job, etc.) to someone else, entrusting, leaving the choice of a meal to the chef, omakase
任す【まかす】
to entrust (to someone), to leave (in someone's hands)
就任【しゅうにん】
assumption (of office), taking up (a post), inauguration, installation
無責任【むせきにん】
irresponsibility
担任【たんにん】
being in charge of (esp. a class or subject), taking charge of, class teacher, homeroom teacher, form teacher
任命【にんめい】
appointment, nomination, ordination, commission, designation
後任【こうにん】
successor
辞任【じにん】
resignation (from a position)
任期【にんき】
term of office
適任【てきにん】
competent, suitable, qualified
任意【にんい】
optional, voluntary, arbitrary, random, discretionary, facultative, spontaneous, any, arbitrary
赴任【ふにん】
moving to a different location to start a new job, (proceeding to) new appointment
初任給【しょにんきゅう】
initial salary
委任【いにん】
entrusting, charge, delegation, authorization
放任【ほうにん】
noninterference, leaving something to take its own course, giving someone a free hand with something