GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 626 strait (n) A narrow passage of water connecting two larger bodies of water stratagem (n) Any clever trick or device for obtaining an advantage stratum (n) A natural or artificial layer, bed, or thickness of any substance or material streamlet (n) Rivulet striated (adj) having lines or grooves stridency (n) harshness or shrillness sound strident (adj) creaking; harsh, grating stringency (n) Strictness