assibilate, assibilation, bullet, buzz, crinkle, effervesce, effervescence, effervescing, fizz, fizzle, fizzling, fleet, flit, fly, frication, frictional rustling, hiss, hissing, hush, hushing, lisp, rhonchus, rustle, shush, shushing, sibilance, sibilate, sibilation, siffle, sigmatism, siss, sissing, sizz, sizzle, sizzling, sneeze, sneezing, sniff, sniffle, snore, snort, snuff, snuffle, speed, spit, splutter, sputter, squash, squelch, squish, stave, sternutation, stertor, swish, wheeze, whirl, whisk, whisper, whistle, whistling, white noise, whiz, whoosh, zip