Letter on position 1 (d) changed: 8 words cols hols jols mols pols sols vols zols Letter on position 2 (o) changed: 2 words dals dels Letter on position 3 (l) changed: 15 words dobs docs dods does dogs dohs doms dons doos dops dors doss dots dows doys Letter on position 4 (s) changed: 3 words dole doll dolt