rest home,  rest house, rest room  三者有区别吗？

解答 ：

三者意思完全不同，不可混淆不清，闹成笑话。现分别说明如下: 

rest home ：a residential establishment that provides special care for convalescents and aged for infirm persons. (Random house dictionary) 一种疗养院，可供病后体力虚弱，或年老者休息之用。 

rest house ：an empty house for the accommodation of travelers. (Complete Dictionary of English Phrases) 旅客憩息处，休息所，歇凉亭。这原是起源于印度的，如果是在车站附近，就 叫做 dawk bungalow (车站附近的旅店）。此语在美国俗语中， 又用来指舒服的刑务所。 

rest room ：(U.S.) a room or rooms, esp. in a public building, having washbowl, toilet, and other facilities. (Random House Dictionary) 厕所，洗手间。