Sudan's rhymes with:
dan's, danz, sedans, ann's, anne's, ban's, bans, branz, caen's, can's, cannes, cans, cezanne's, chan's, cheyenne's, cheyennes, clans, crans, dan's, danz, diane's, fan's, fans, fans', frans, franz, franze, gans, ganz, glanz, hannes, iran's, jan's, jans, janz, japan's, japans, kanz, klan's, klans, krans, kranz, lanz, man's, mann's, mannes, manns, mans, manz, mccann's, minivans, nan's, pan's, pans, pecans, plan's, plans, plans', rans, ranz, roseanne's, sannes, sans, sanz, scans, sedans, span's, spans, stan's, tans, trans, vans
Sudan's sounds like:
saddam's, saddening, saddens, sadness, satanic, satins, scathing, scouting, seating, seatings, seceding, section's, sectioning, sections, sedans, sedating, sedums, seeding, seething, seidman's, sethness, setting, settings, shading, shadings, shadowens, shadowing, shakedowns, sheathing, shedding, sheeting, sheikdoms, shooting, shootings, shouting, showdowns, showtime's, shutdowns, shutting, siddens, siddons, siding, sighting, sightings, sitenski, sitenski's, sitenskis, siting, sitting, situation's, situations, sixteen's, sixteens, skating, skidding, sodomize, sodomizes, soothing, southdown's, squatting, stadium's, stadiums, stadnik, stahnke, staines, staining, stains, stamas, stamos, stan's, stance, stances, stanch, stancik, stanco, stanczak, stanczyk, stanek, stang, stanga, stange, stango, stanich, stanis, stanish, staniszewski, stank, stanke, stankey, stankiewicz, stanko, stankowski, stankus, stansky, stanwick, stanza, stanzas, statin's, stating, statins, station's, stationing, stations, stations', staunch, staying, steadiness, steaming, steams, stein's, steines, steinhaus, steinke, steinway's, stemming, stems, stench, stenhouse, stennis, stenz, stewing, stiens, stimac, stines, sting, sting's, stings, stingy, stink, stinks, stinky, stomach, stomachs, stone's, stonehenge, stonehouse, stones, stones', stong, stonge, stoning, stoutness, studnicka, studying, stung, stunk, stunning, stuns, stymies, st_denis, st_dennis, st_thomas, succeeding, sudanese, suddam's, suddenness, suggesting, suggestions, suiting, sustaining, sustains, sustenance, sutnick, sutton's, sweating, sweden's, sweetening, sweetens, sweeting, sweetness, sydney's, system's, systemhouse, systemhouse's, systemic, systemix, systems, systems'