Covault rhymes with:
vault, assault, ault, basalt, brault, dault, default, exalt, fault, galt, gault, halt, kalt, kuralt, malt, mault, nault, pinault, salt, sault, vault, walt
Covault sounds like:
cabled, capability, capaldi, capaldo, cappelletti, casebolt, caufield, chavalit, civiletti, civility, cobalt, cobbled, cockfield, coffelt, coffield, cofield, copilot, copulate, coupled, covalt