to make sb unconscious before an operation by using drugs (called an anaesthetic); to kill a sick or injured animal by giving it drugs so that it dies without pain. People say' put to sleep' to avoid saying' kill'.
put sb to sleepinformal
to make sb unconscious before an operation by using drugs (called an anaesthetic)
put sth to sleep
to kill a sick or injured animal by giving it drugs so that it dies without pain. People say' put to sleep' to avoid saying' kill'.
Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición