Letter on position 1 (b) changed: 11 words card eard fard hard lard mard nard pard sard ward yard Letter on position 2 (a) changed: 3 words bird bord burd Letter on position 3 (r) changed: 4 words bald band baud bawd Letter on position 4 (d) changed: 8 words barb bare barf bark barm barn barp bars