Here's what rhymes with iff.
if def whiff riff tiff stiff cliff sniff skiff midriff hieroglyph Words that almost rhyme with iff
is his this with give fish wish miss myth viz bis dish kiss dis sieve diss hiss pith sis pis piss scythe writhed biz hes kith rive whiz writhe fizz shes abyss bliss amiss quiz smith swish forgive outlive relive remiss dismiss therewith wherewith herewith premiss forthwith monolith jellyfish reminisce chandeliers cuttlefish corroborative silversmith lymph nymph