Letter on position 1 (p) changed: 13 words cons dons eons fons gons hons ions kons mons oons sons tons wons Letter on position 2 (o) changed: 4 words pans pens pins puns Letter on position 3 (n) changed: 10 words poas pods pois pols poms poos pops poss pots pows Letter on position 4 (s) changed: 6 words pond pone pong ponk pont pony