1 to cause (a person or animal) to become unconscious by means of an anaesthetic; to anaesthetize: The doctor will give you an injection to put you to sleep.
az: yatırtmaq
ru: усыпить
2 to kill (an animal) painlessly, usually by the injection of a drug: As she was so old and ill my cat had to be put to sleep.
az: ağrısz öldürmək (heyvanları)
ru: усыпить