Cornwall rhymes with:
aspinwall, aspinwall, sawall, actigall, albuterol, amphenol, ampol, aspinall, aspinwall, bedsaul, bliscoll, cobol, coggeshall, devol, ingersoll, karol, kasbrol, konkol, korol, koziol, mcnicol, menthol, mikol, nichol, pearsall, piersol, resveratrol, rosol, rossignol, saemaul, sawall, tesol, tylenol, warchol, warhol, zongol
Cornwall sounds like:
caramel, carmel, carmela, carmelo, carnal, carneal, carnell, carnley, ceremonial, charnley, chromalloy, ciaramella, cornall, corneal, cornel, cornela, cornelia, cornelio, cornell, cornelle, corniel, cornmeal, cornwell, cranial, cranley, crannell, criminal, criminally, cromley, cromwell, crumley, crumly