Bosnian's rhymes with:
bosnians, bosnians, bosnians, albanians, amazonians, argentinians, armenians, athenians, augustinians, babylonians, bosnians, bostonians, caledonian's, carolinians, chechnyan's, chechnyans, estonians, finian's, indianians, iranians, iranians', jacksonians, jeffersonians, jordanians, lithuanians, louisianians, oregonians, orleanians, palestinian's, palestinians, palestinians', panamanians, pennsylvanians, romanians, smithsonian's, stepanian's, ukrainian's, ukrainians, washingtonians
Bosnian's sounds like:
backing, bacon's, bafokeng, bagginess, bagging, baginski, baking, baoguang, basenji, bashing, basim's, basing, basins, basinski, basking, baskins, beaching, beacons, beakman's, beckoning, beckons, becomes, becoming, beecham's, begging, begin's, beginning, beginnings, begins, begnoche, begonias, beijing, beijing's, bekins, beseeching, besieging, bicking, biggins, bigness, biking, bikinis, biogen's, bioscience, biosciences, bizango, bochenek, bogging, bojanowski, bojenka, booking, bookings, boozing, bosnia's, bosnians, bosnias, bowsing, boxing, boxing's, boykins, buchanan's, buchanans, bucking, buckskins, buczynski, buesing, bugging, bushings, bushong, bushwhacking, business, business', business's, businesses, businesses', busing, bussing, buzzing, bygones, bypassing