Letter on position 1 (p) changed: 14 words bees cees dees fees gees jees lees mees rees sees tees vees wees zees Letter on position 2 (e) changed: 2 words pies pyes Letter on position 3 (e) changed: 9 words peas pecs peds pegs pehs pens peps pets pews Letter on position 4 (s) changed: 6 words peed peek peel peen peep peer