1
: one that shuts
2
: a usually movable cover or screen for a window or door
3
: a mechanical device that limits the passage of light
especially
: a camera component that allows light to enter by opening and closing an aperture
4
: the movable louvers in a pipe organ by which the swell box is opened
shuttered; shuttering; shutters
1
: to close by or as if by shutters
corporations shuttering their production plants
2
: to furnish with shutters
Cite this Entry
“Shutter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/shutter. Accessed 6 Aug. 2026.
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