shutter

/ˈʃʌtɚ/noun

The part of a camera that briefly opens to let light reach the film or sensor when a photo is taken.

Example sentence

“The click of the shutter startled the birds.”

Also names the hinged wooden panels that cover a window. Photographers talk constantly about 'shutter speed'.

Related words

doorbellA button or device beside a door that visitors press or ring to let people inside know they have arrived.gutterA channel along the edge of a road or roof that carries away rainwater.doormatA rough mat placed outside a door where people can wipe the dirt off their shoes.drivewayA short private path for cars connecting the street to someone's house or garage.thresholdThe strip at the bottom of a doorway that you step over when entering a room or building.verandaA roofed, open platform or porch, sometimes partly enclosed, that runs along the outside wall of a house.