shriek, n. [screech], [yell], [scream].
shrill, a. [piercing], acute, strident.
shrink, v. [contract], shrivel, [decrease], [dwindle]; [flinch], [recoil], [blench], [wince], winch.
shrinkage, n. [contraction]; (Colloq.) depreciation.
shrinking, a. [coy], [shy], [diffident], [bashful], [modest], [retiring].
shroud, n. winding-sheet, [grave-clothes], cerements.
shroud, v. [mask], [screen], [cloak], conceal.
shrub, n. [bush]; pl. shrubbery, [thicket], boscage, bosket.
shuck, n. [shell], [husk], [pod], shale.--v. [shell], enucleate.
shudder, n. tremor.--v. [tremble], [shake], [shiver], [quake].