- an object or device that shuts (something) off: the automatic shutoff on a heater.
- an act or instance of shutting off something, as an opening, a flow, or a service: a shutoff of electric power due to unpaid bills.
Origin of shutoff
- to put (a door, cover, etc.) in position to close or obstruct.
- to close the doors of (often followed by up): to shut up a shop for the night.
- to close (something) by bringing together or folding its parts: Shut your book. Shut the window!
- to confine; enclose: to shut a bird into a cage.
- to bar; exclude: They shut him from their circle.
- to cause (a factory, school, etc.) to end or suspend operations, services, or business activity: He shut his store, sold his house, and moved away. We're shutting the office for two weeks in June.
- to bolt; bar.
- to become shut or closed; close.
- closed; fastened up: a shut door.
- Phonetics. checked(def 2).
- the act or time of shutting or closing.
- the line where two pieces of welded metal are united.
- shut down,
- to close, especially temporarily; end or suspend operations, services, or business activity.
- to stop operating or stop the operation of (a machine): Did you remember to shut down your computer?
- Also shut down on/upon.Informal.to hinder; check; stop from doing or saying something: He appeared on the talk show to shut down his critics.
- Informal.to defeat or outdo:The team was able to shut down the offense.
- to settle over so as to envelop or darken: The fog shut down rapidly.
- shut in,
- to enclose.
- to confine, as from illness: She broke her leg in a fall and has been shut in for several weeks.
- shut of, Informal. free of; rid of: He wished he were shut of all his debts.
- shut off,
- to stop the passage of (water, traffic, electricity, etc.); close off.
- to isolate; separate: an outpost almost completely shut off from civilization.
- shut out,
- to keep from entering; exclude.
- to hide from view.
- to prevent (an opponent or opposing team) from scoring, as in a game of baseball.
- shut up,
- to imprison; confine.
- to close entirely.
- to stop talking; become silent: I thought the neighbors would never shut up and let me sleep.
- to stop (someone) from talking; silence.
Origin of shut
SynonymsSee more synonyms on Thesaurus.com
- to move (something) so as to cover an aperture; closeto shut a door
- to close (something) by bringing together the partsto shut a book
- (tr often foll by up) to close or lock the doors ofto shut up a house
- (tr; foll by in, out, etc) to confine, enclose, or excludeto shut a child in a room
- (tr) to prevent (a business, etc) from operating
- shut one's eyes to to ignore deliberately
- shut the door on
- to refuse to think about
- to render impossible
- closed or fastened
- the act or time of shutting
- the line along which pieces of metal are welded
- get shut of or get shot of slang to get rid of
Word Origin and History for shut off
Old English scyttan "to put (a bolt) in place so as to fasten a door or gate, bolt, shut to; discharge, pay off," from West Germanic *skutjan (cf. Old Frisian schetta, Middle Dutch schutten "to shut, shut up, obstruct"), from PIE *skeud- "to shoot, chase, throw" (see shoot (v.)). Related: Shutting.
Meaning "to close by folding or bringing together" is from mid-14c. Meaning "prevent ingress and egress" is from mid-14c. Sense of "to set (someone) free (from)" (c.1500) is obsolete except in dialectal phrases such as to get shut of. To shut (one's) mouth "desist from speaking" is recorded from mid-14c.
Idioms and Phrases with shut off
Stop the flow or passage of, as in They shut off the water while repairs were being made. [Early 1800s]
Close off, isolate, as in Loners shut themselves off from the community. [First half of 1800s]