Softens rhymes with:
dolphins, dolphins', entoffen's, gryphons, muffins, orphans, siphons, steffens, stephans, stiffens, toughens
Softens sounds like:
septimus, shafting, shifting, sifting, softening, softimage, softness, speeding, spitting, spotting, spouting, sputnik, sputniks, subatomic, subduing, subotnick, swiftness