Cumber rhymes with:
encumber, macumber, mccumber, unencumber, encumber, humber, lumber, macumber, mccumber, number, outnumber, slumber, unencumber
Cumber sounds like:
camber, cambior, cambra, cambre, cambria, camper, campfire, campofrio, canberra, canevari, canfor, chamber, cinnabar, comber, comfrey, compaore, compare, compher, compuware, confair, confer, conferee, confrere, conifer, conover, convair, convery, conveyer, conveyor, cucumber