Dictionary/専任せんにんSennin専任 (Sennin) is a Japanese noun meaning “full-time service”.Meaningsnoun, suru verb, adjectival nounfull-time serviceKanji in 専任専specialty任responsibilityRelated words任せるto leave (a matter, decision, etc. to someone)責任duty主任person in charge専務special duty任すto entrust (to someone)任務duty任obligation専門speciality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就任assumption (of office)