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
American idioms English vocabulary. Английский словарь американских идиом. 2012