Letter on position 1 (p) changed: 9 words boos coos doos goos loos moos roos woos zoos Letter on position 2 (o) changed: 2 words phos pros Letter on position 3 (o) changed: 10 words poas pods pois pols poms pons pops poss pots pows Letter on position 4 (s) changed: 9 words pood poof pooh pook pool poon poop poor poot