Letter on position 1 (b) changed: 6 words fuses muses puses ruses suses wuses Letter on position 2 (u) changed: 3 words bases beses bises Letter on position 3 (s) changed: 2 words bukes butes Letter on position 4 (e) changed: 2 words busks busts Letter on position 5 (s) changed: 1 word bused