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