Letter on position 1 (m) changed: 7 words busks cusks dusks husks lusks rusks tusks Letter on position 2 (u) changed: 2 words masks mosks Letter on position 3 (s) changed: 2 words mucks murks Letter on position 4 (k) changed: 3 words muses musos musts Letter on position 5 (s) changed: 1 word musky