Passport rhymes with:
massport, kingsport, massport, mckeesport, reexport, spaceport, williamsport, airport, allport, bridgeport, cambridgeport, carport, coudersport, davenport, freeport, gumport, kennebunkport, kingsport, lamport, lockport, lufttransport, massport, mckeesport, purport, rapaport, reexport, rockport, seaport, shippingport, shreveport, southport, spaceport, westport, williamsport
Passport sounds like:
pegboard, phosphorite, pickford, pigford