Letter on position 1 (s) changed: 14 words bees cees dees fees gees jees lees mees pees rees tees vees wees zees Letter on position 2 (e) changed: 4 words shes sies sues syes Letter on position 3 (e) changed: 12 words seas secs segs seis sels sens seps sers sess sets sews seys Letter on position 4 (s) changed: 7 words seed seek seel seem seen seep seer