Quicken rhymes with:
wiccan, chicken, dicken, ficken, hicken, licon, picken, picon, ricken, sicken, stricken, thicken, vicon, wiccan
Quicken sounds like:
qana, qian, qichen, qin, qom, quain, quam, quamme, quan, queen, queena, queenan, queenie, quemoy, quijano, quin, quina, quine, quinine, quinn, quinney, quinon, quon