GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 608 shrivel (v) To draw or be drawn into wrinkles shuffle (n) A mixing or changing the order of things sibilance (n) A hissing sound sibilant (adj) Made with a hissing sound sibilate (v) To give a hissing sound to, as in pronouncing the letters sidelong (adj) Inclining or tending to one side sidereal (adj) Pertaining to stars or constellations siege (n) A beleaguerment