shutter

• POS: Noun, Verb (transitive)
• HYPHEN: shut=ter

CIDE DICTIONARY

shutter, n. 

•  One who shuts or closes.  [1913 Webster]
•  A movable cover or screen for a window, designed to shut out the light, to obstruct the view, or to be of some strength as a defense; a blind.  [1913 Webster]
•  A removable cover, or a gate, for closing an aperture of any kind, as for closing the passageway for molten iron from a ladle.  [1913 Webster]
•  A mechanical device of various forms, attached to the aperture of a camera lens for opening and closing to expose the plate. It is usually designed so that the time during which the aperture is opened may be varied by a manual dial or by some automatic mechanism, thereby allowing proper exposure of a photographic film under different intensities of light.  [Webster 1913 Suppl.]

OXFORD DICTIONARY

shutter, n. & v.
--n.
1 a person or thing that shuts.
2 a each of a pair or set of panels fixed inside or outside a window for security or privacy or to keep the light in or out. b a structure of slats on rollers used for the same purpose.
3 a device that exposes the film in a photographic camera.
4 Mus. the blind of a swell-box in an organ used for controlling the sound-level.
--v.tr.
1 put up the shutters of.
2 provide with shutters.

Idiom

put up the shutters
1 cease business for the day.
2 cease business etc. permanently.

Derivative

shutterless adj.

ROGET THESAURUS

shutter

Shade

N shade, awning, parasol, sunshade, umbrella, chick, portiere, screen, curtain, shutter, blind, gauze, veil, chador, mantle, mask, cloud, mist, gathering, of clouds, umbrage, glade, shadow, beach umbrella, folding umbrella, shady, umbrageous, welcome ye shades! ye bowery thickets hail.