Passon rhymes with:
assassin, bason, cason, casson, chason, clason, classen, classon, fason, fasten, gassen, glasson, hassen, hasson, kassan, kassen, kasson, klassen, lassen, masson, mcglasson, nason, sasson, stassen
Passon sounds like:
paccione, pacini, pacino, packham, packman, pacman, pacyna, pagan, pagani, paganini, pagano, pagni, paign, pajama, papazian, papson, paquin, paschen, pasion, pasman, pasquini, passim, passino, passion, passman, pawson, paxman, paxon, paxson, payson, pecan, pechin, pechiney, pechman, pecina, peckham, peckman, pekin, pequeno, pesina, peskin, pessin, pezeshkan, pezim, pgm, phagan, physician, picayune, picciano, piccinini, piccione, piccone, picheny, pichon, picken, pickney, picon, picone, pigan, pigeon, pigman, pigmy, pignone, pigskin, pipkin, pisani, pisano, pisoni, pizana, pizano, pizzano, pizzino, po-jen, pocono, poison, poisson, popken, popkin, posen, possession, possum, poussin, pousson, poznan, puccini, pusan, pushkin, pygmy