Freemason rhymes with:
mason, basin, caisson, capsaicin, cayson, chaisson, chasen, chasten, clasen, grayson, gustaveson, hasten, jason, klasen, leysen, mason, salveson, spleisson
Freemason sounds like:
framingham, franceschini, francesconi, franchini, franchino, francine, franciscan, francom, francyne, franken, frankino, frankson, frankum, fransen, franson, franssen, franzen, franzone, franzoni, frenchman, frenchmen, frumkin