1、[rèn]：使用；委派。担当或承受。职务；责任。介词。由着；听凭。连词。不论；无论。量词。用于担任职务的次数。古又同“妊”。

2、[rén]：用于地名，如任丘、任县（均在河北）。姓。

3、“任”组词：

任达、任满、任遇、任姒、任患、任责、任堪、任恤、任战、任持、任棠、任甚、任职、任城、任免、任怨、任正、任气、任运、任上、任所、任受、任散、任数、任信、任天、任车、任举、任力、任便、任颐、任过、任命、任委、任率、任算、任身、任土、任鄙、任啥、任前、任诞、任政、任务、任劳、任兴、任事、任凭、任使、任刻、任性、任兵、任心、任脉、任器、任木、任待、任良、任随、任术。