Letter on position 1 (c) changed: 9 words doms homs moms noms ooms poms roms soms toms Letter on position 2 (o) changed: 2 words cams cwms Letter on position 3 (m) changed: 12 words cobs cods cogs cols cons coos cops cors coss cots cows coys Letter on position 4 (s) changed: 5 words coma comb come comm comp