off
1.
to stop a machine, tool, etc. from working
2.
to stop a supply of gas, water, etc. from flowing or reaching a place :
A valve immediately shuts off the gas when the lid is closed.
off
1.
to stop a machine, tool, etc. from working
2.
to stop a supply of gas, water, etc. from flowing or reaching a place :
A valve immediately shuts off the gas when the lid is closed.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005