Monopoles rhymes with:
metropol's, flagpoles, metropol's, redpolls, tadpoles, bankrolls, blowholes, bubolz, buttonholes, charcoals, flagpoles, foxholes, fumaroles, keyholes, krumholz, loopholes, metropol's, orioles, orioles', payrolls, petroles, pinholes, postholes, potholes, redpolls, seminoles, superbowl's, superbowls, tadpoles, windholz
Monopoles sounds like:
maniples, manville's, maples, minneapolis, minneapolis's, mobil's, mobile's, mobiles, mobilize, monfils, monopolies, monopolize, monopolizes, muffles, mumbles