Here's what rhymes with spongiform.
form farm harm forme warm charm inform storm norm swarm disarm dorm perform reform alarm conform forearm deform firearm nonfarm rearm overarm rewarm cruciform preform underarm misinform uniform transform chloroform lukewarm thunderstorm fusiform multiform outperform vermiform schoolmarm yardarm cuneiform nonuniform Words that almost rhyme with spongiform
horn psalm thorn shorn born corn borne torn worn barn warn scorn sworn yarn morn mourn darn porn tarn lorn adorn forlorn forborne unborn reborn outworn careworn forewarn unworn lowborn firstborn stillborn unicorn forsworn lovelorn peppercorn timeworn foresworn sweetcorn waterborne homme vom som com calm bomb palm mom bom balm nom rom tom dom mam suam pom iamb quam prom qualm salaam consomme becalm aplomb pogrom embalm firebomb intercom supermom cardamom