Letter on position 1 (m) changed: 13 words bans cans dans eans fans gans kans nans pans sans tans vans wans Letter on position 2 (a) changed: 2 words mons muns Letter on position 3 (n) changed: 14 words maas macs mads maes mags maks mals mams maps mars mass mats maws mays Letter on position 4 (s) changed: 7 words mana mand mane mang mani mano many