Penn-hills rhymes with:
brazzaville's, brooksville's, churchill's, colleville's, cromwell's, dansville's, farrell's, fibriles, granville's, manville's, monfils, nevills, pannill's, pendril's, personals, powell's, rachels, sheathbills, tocqueville's
Penn-hills sounds like:
painless, pamela's, panel's, panelize, panels, panels', pannill's, penalize, penalizes, penaloza, penelas, penniless, penology, phenolic, phonology, pinellas, pinholes, pomology