Here's what rhymes with ravail.
fail sale sail veil hail shale vale hale faille male scale mail pale tail tale avail jail nail rail frail gale whale bail stale wail assail bale dale pail snail flail kale wale wassail lugsail trail prevail email travail inhale quail quale braille topsail unveil grail taffrail hightail detail entail curtail exhale bewail derail mainsail foresail impale monorail bobtail carrell gunwale pigtail pellmell hangnail fingernail ponytail countervail martingale swallowtail nonpareil tattletale