Letter on position 1 (b) changed: 7 words cusks dusks husks lusks musks rusks tusks Letter on position 2 (u) changed: 3 words basks bisks bosks Letter on position 3 (s) changed: 5 words bucks buiks bulks bunks burks Letter on position 4 (k) changed: 2 words buses busts Letter on position 5 (s) changed: 1 word busky