put to sleepidiom
Definition of put to sleep
1 : to give (a sick or injured animal) drugs that will make it die without pain
2 informal : to use a drug to make (someone) unconscious before a medical operation : to give (someone) anesthesia before a medical operation
3 : to get (someone) ready to sleep for the night Did you put the kids to sleep?
4 : to make (someone) fall asleep from boredom Her lectures used to put me to sleep.