sheet lightning lightning reflected and diffused, often by a distant thunderstorm, that flashes like a sheet of light in the sky.
sheet metal metal that has been rolled into thin sheets or plates.
sheet music music printed on loose or unbound sheets of paper.
shelf life the length of time a product can be stored without spoiling or deteriorating.
she'll contracted form of "she will".
-shelled having (such) a shell.
shellfire the firing of artillery shells.
shellfish an aquatic invertebrate animal that has a shell, esp. an edible animal such as a clam, oyster, or lobster.
shellproof protected from or invulnerable to shells or bombs.
shell shock any of several neuroses resulting from traumatic experiences in war or combat.
sheltered workshop a workshop where handicapped persons work for wages and often receive job training in an environment devoid of the usual pressures of a job.