Isolate

切り離す

kirihanasu

(transitive: to set apart or cut off from others)

孤立させる

koritsu saseru

(transitive: to set apart or cut off from others)

遮断する

shadan suru

(transitive: to insulate, or make free of external influence)

隔絶する

kakuzetsu suru

(transitive: to set apart or cut off from others)

隔離する

kakuri suru

(transitive: to place in quarantine or isolation)