Shutters are hinged panels closed over a window at night. Close the shutters, wooden shutters, shutters banging.
They are external in hot and stormy countries, where they keep out sun and weather, and internal and largely decorative in Britain — the same word for two rather different fittings. Shop shutters are the rolling steel kind. In a camera, the shutter is what times the exposure. Note shut, from which the whole family comes.
1nounshuttersHinged panels closed over a window.
“The wind banged the loose shutters against the wall all night.”
shutters is a window covering.
shutter comes from shut + -er. From shut + -er. Compare shuttle.
Etymology from Wiktionary, CC BY-SA