Mcwilliams rhymes with:
macwilliams, macwilliams, macwilliams, macwilliams, william's, williams, williams', macwilliams, william's, williams, williams'
Mcwilliams sounds like:
macklin's, macwilliams, magallanes, magellan's, magellanic, mangling, maslanka, mcclimans, mcclung, mcglinchey, mclean's, mechling, megalomaniac, miglin's, mingling, miscellaneous, monoclinic, moskolenko, moslems, muscling, muslims, mussolini's, myslinski