Dictionary/在任ざいにんZainin在任 (Zainin) is a Japanese noun meaning “being in office”.Meaningsnoun, suru verb, intransitive verbbeing in officeKanji in 在任在exist任responsibilityRelated words有るto be任せるto leave (a matter, decision, etc. to someone)責任duty存在existence現在the present主任person in charge任すto entrust (to someone)任務duty任obligation担任being in charge of (esp. a class or subject)責任者person in charge (including a supervisory role for other staff)無責任irresponsibility