shutter
noun /ˈʃʌtə(r)/
/ˈʃʌtər/
Idioms 
enlarge image[usually plural] one of a pair of wooden or metal covers that can be closed over the outside of a window to keep out light or protect the windows from damage
enlarge image- to open/close the shutters
- They explored, throwing open the shutters in each of the big rooms.
- (British English, figurative) More than 70 000 shopkeepers have been forced to put up the shutters (= close down their businesses) in the past year.
Extra ExamplesTopics Houses and homesc1, Buildingsc1- Daylight was filtering through the shutters when he woke up.
- He threw open the shutters to cool the room.
- She could be seen waiting for him behind half-closed shutters.
- The store had put up the shutters for the night.
Oxford Collocations Dictionaryadjective- closed
- open
- metal
- …
- have
- fling open
- fold back
- …
- be down
- come down
- behind shutter a/the
- through shutter a/the
- the part of a camera that opens to allow light to pass through the lens when you take a photograph
- the quiet click of the shutter
Extra Examples- You will need a fast shutter speed to photograph racing.
- As the princess approached you could hear hundreds of camera shutters clicking.
Oxford Collocations Dictionaryadjective- camera
- click
- press
- click
- speed
- button
- release
- …
Idioms
bring/put down the shutters
- to stop letting somebody know what your thoughts or feelings are; to stop letting yourself think about something
- He brought down the shutters on the image of the dying girl.
- I could feel the shutters coming down in her mind.