Powerboat rhymes with:
motorboat, riverboat, ferryboat, flatboat, gunboat, houseboat, lifeboat, motorboat, riverboat, rowboat, sailboat, showboat, speedboat, steamboat, towboat, tugboat
Powerboat sounds like:
parapet, parfait, parfitt, perfetti, perfetto, perfidy, perpetua, perpetuate, perpetuated, perpetuity, pervade, pervaded, pravda, prepaid, prepped, prevatt, prevatte, prevette, previewed, previte, previti, private, private-eye, privett, privette, privott, probate, probed, probity, profeta, proffit, proffitt, profit, profited, profitt, prohibit, prohibited, proofed, prophet, propped, proved, provide, provided, provote, purified, purveyed