Pion rhymes with:
agamemnon, aileron, alarcon, albashaun, amazon, antiphon, aragon, arbitron, argon, argonne, arton, autobahn, autobon, automaton, avalon, axon, babylon, betaseron, boron, capon, carillon, catchacan, celadon, cephalon, chapoton, christiaan, cimarron, comecon, crayon, d'aubuisson, dacron, digicon, dijon, distron, echelon, econ, emoticon, epsilon, erawan, ethicon, farrakhan, fenelon, germiston, greenspon, guslan, halon, hardymon, helicon, hexagon, hogan, huron, infotron, lexicon, liaison, lifson, littlejohn, logicon, magnetron, mahtan, marathon, memnon, meson, micron, midcon, monoszon, moron, narasimhan, neutron, nikon, nipon, nylon, oberon, octagon, oerlikon, olajuwon, oxdon, pantheon, paragon, parmesan, parthenon, pentagon, phenomenon, photon, pi-meson, planecon, polygon, polysilicon, pompon, positron, proton, pylon, qian, radon, radovan, ragavan, reveron, saamstaan, semicon, shihan, simion, siobhan, sirhan, slip-on, slobodan, symtron, technicon, telefon, teletron, tucson, upjohn, vanderlaan, videotron, walk-on, waylon, yukon
Pion sounds like:
p.m., pabon, paean, pain, paine, paino, pam, pammy, pan, panam, panama, panamanian, pane, panem, panini, pannone, pannu, panny, paone, papania, papin, papineau, papini, papon, pavon, pavone, pawn, pawnee, pay'n, payan, payin', payna, payne, peine, pen, pena, penh, penman, penn, penna, penney, pennie, penniman, pennino, penny, peon, peony, pepin, peppin, peyman, pham, phan, phen, phenom, phenomena, phenomenon, phinney, phippen, phnom, phone, phoneme, phoney, phony, piana, piano, pima, pimm, pin, pina, pine, pineau, pineo, pinho, pini, pinion, pinn, pinneo, pinney, pinnow, pino, piny, pinyan, pippen, pippin, pm, pneumo, pneumonia, poem, pom, poma, pomona, pon, pony, poon, popham, poppen, ppm, puffin, puma, pun, puny, pymm, pyne