Servicemen's rhymes with:
boatmen's, emens, freemen's, kamens, midshipmen's, uelmen's, amgen's, arbenz, boatmen's, cortens, cortens', dornhens, emens, freemen's, garsten's, houten's, kamens, midshipmen's, mutagens, uelmen's
Servicemen's sounds like:
sacrificing, servicing, surfaceness, surfacing, surpassing