Provable rhymes with:
approvable, approvable, approvable, immovable, movable, removable, achievable, approvable, believable, conceivable, drivable, forgivable, immovable, inconceivable, livable, lovable, microwavable, movable, observable, receivable, removable, solvable, survivable, unbelievable, unforgivable, unlivable, unsolvable
Provable sounds like:
parable, parabola, parboil, powerball, powerful, powerfully, prayerful, prebble, preble, prevail, preval, pribble, pribula, pribyl, probable, probably, profile, propel, purple