Intense rhymes with:
pretense, tense, bence, commence, commonsense, condense, defence, defense, dense, dispense, expense, fence, ferenc, hence, hense, immense, incense, nondefense, offense, pence, pense, pretense, sense, spence, spens, suspense, tense, thence, whence
Intense sounds like:
imitating, imitations, indian's, indiana's, indianians, indians, indians', indonesia, indonesia's, initiating, intimacy, intones, intoning, inundating, inundations