{v. phr.} 1. To cause to fall asleep. * /Mother used to put us to sleep by telling us a good-night story and giving us a kiss./ 2. To kill with an injection (said of animals). * /Dr. Murphy, the veterinarian, put our sick, old dog to sleep./
PUT TO SLEEP
Meaning of PUT TO SLEEP in English
Dictionary of English idioms . Словарь английских идиом. 2012