Stopper rhymes with:
topor, topper, bopper, chopper, clopper, copper, cropper, dropper, gropper, hopper, improper, kopper, opper, popper, proper, propper, shopper, topor, topper, whopper
Stopper sounds like:
sedberry, sidebar, staffer, staffieri, stauber, stauffer, staver, stayover, steber, steeber, steeper, steever, stepper, steuber, steuver, stever, stieber, stiffer, stiver, stober, stoeber, stoever, stofer, stoffer, stoiber, stopher, stopover, stouffer, stover, stpierre, stuber, stueber, stuffer, stupar, stupor, stuver, st_pierre, sudberry, sudbury