Pierpont rhymes with:
vipont, ausimont, belmont, bromont, claremont, claymont, clermont, confidant, crestmont, enfant, enimont, erbamont, fairmont, freemont, helmont, inmont, jeumont, l'enfant, larchmont, longmont, newmont, oakmont, piedmont, restaurant, richemont, rosemont, storefront, valmont, vipont, whitemont
Pierpont sounds like:
perfumed, pierpoint, pierrepont, prepayment, prevent, prevented, profanity, profound, proponent, propound, propounded, provant