blare, blat, blow open, blow out, bray, break out, burp, burr, burst, burst forth, burst out, buzz, cackle, cascade, caw, chirr, clang, clangor, clank, clash, craunch, croak, crump, crunch, debouchment, discharge, disgorge, dissiliency, eject, eruct, eructate, eructation, erupt, eruption, expel, flare-up, gas, grind, groan, growl, grumble, gush, hiccup, hurl forth, irrupt, jangle, jar, jet, outbreak, outburst, rapids, rasp, rush, scranch, scrape, scratch, scrunch, snarl, snore, spate, spew, spout, spurt, torrent, twang, volcan, vomit, wind