Letter on position 1 (b) changed: 12 words coss doss foss goss hoss joss koss loss moss poss soss toss Letter on position 2 (o) changed: 2 words bass buss Letter on position 3 (s) changed: 13 words boas bobs bods bogs bohs bois boks boos bops bors bots bows boys Letter on position 4 (s) changed: 2 words bosh bosk