Shutter

Shutter could mean:

Windows:
Window shutter, a solid window covering used to block light and winds
Hurricane shutter, a reinforced window shutter for protection in strong winds

Optical:
Shutter (photography), a photographic device that administers the exposure by limiting the time over which light is admitted
Movie projector shutter, used to interrupt the emitted light during the time the film is advanced to the next frame
Stage lighting shutter, used to modify the light cast by a theatre light
A device used to manipulate pulses of light in a signal lamp

Acoustic:
Swell shutter, a flap used to control the flow of air through the pipes in a pipe organ

Movies:
Shutter (Thai movie), a 2004 horror movie from Thailand
Shutter (US movie), a 2004 movie from the United States
Shutter (Short movie), a 2001 short movie by Jannu Alain Goldschmidt
Shutter (2008 movie), a 2008 starring Joshua Jackson

Other
Shuttering is the permanent closure of a building or business.