Letter on position 1 (b) changed: 11 words cogs dogs fogs hogs jogs logs mogs nogs sogs togs wogs Letter on position 2 (o) changed: 4 words bags begs bigs bugs Letter on position 3 (g) changed: 13 words boas bobs bods bohs bois boks boos bops bors boss bots bows boys Letter on position 4 (s) changed: 1 word bogy