Letter on position 1 (d) changed: 13 words bans cans eans fans gans kans mans nans pans sans tans vans wans Letter on position 2 (a) changed: 4 words dens dins dons duns Letter on position 3 (n) changed: 12 words dabs dads daes dags dahs dais daks dals dams daps daws days Letter on position 4 (s) changed: 3 words dang dank dant