Appell rhymes with:
appel, apple, cappel, chapel, chappel, chappell, chapple, grapple, happel, kappel, mapel, schappell, shappell, snapple, stapel
Appell sounds like:
abbeville, abel, abela, abele, abell, abella, abelow, abila, abiola, able, ably, abuellah, affable, affably, afoul, afula, apel, apfel, apollo, appall, appeal, appel, apple, apply, aubel, auble, auvil, avail, avella, aviall, avila, avilla, avolio, awful, awfully