Letter on position 1 (p) changed: 7 words ceas keas leas seas teas yeas zeas Letter on position 2 (e) changed: 3 words pias poas pyas Letter on position 3 (a) changed: 9 words pecs peds pees pegs pehs pens peps pets pews Letter on position 4 (s) changed: 6 words peag peak peal pean pear peat