Letter on position 1 (c) changed: 12 words bots dots hots jots lots mots oots pots rots sots tots wots Letter on position 2 (o) changed: 3 words cats cits cuts Letter on position 3 (t) changed: 12 words cobs cods cogs cols coms cons coos cops cors coss cows coys Letter on position 4 (s) changed: 3 words cote coth cott