Letter on position 1 (c) changed: 12 words boss doss foss goss hoss joss koss loss moss poss soss toss Letter on position 2 (o) changed: 2 words cess cuss Letter on position 3 (s) changed: 12 words cobs cods cogs cols coms cons coos cops cors cots cows coys Letter on position 4 (s) changed: 4 words cose cosh cost cosy