shutter

US /ˈʃʌt̬.ɚ/
UK /ˈʃʌt̬.ɚ/
"shutter" picture
1.

a device that opens and closes to admit light to a camera or to protect a window

:
•
The photographer adjusted the camera's shutter speed.
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She closed the window shutters to block out the sun.
:
blindscreencoverclosure
1.

to close a business or stop operating

:
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Many small businesses were forced to shutter during the pandemic.
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The factory decided to shutter its operations due to declining sales.
:
closecease operationsshut downfoldgo out of business
:
shutter speed