Thomassen rhymes with:
thomason, thomasson, thomason, thomasson, amason, rasmuson, rasmussen, rasmusson, thomason, thomasson
Thomassen sounds like:
tangeman, tangen, tangney, tanguma, tankan, tanzania, tanzanian, temkin, teng-wen, tennessean, tennison, tennyson, tension, thinkin, thinkin', thomasina, thomasine, thomason, thomasson, thomison, thomsen, thomson, tianjin, timken, timson, tingen, tinkham, tinsman, tomasina, tomasine, tomasini, tomasino, tomkin, tomson, tonkin, tonnesen, townsman, townson, tunisian, tunison, twonshein