Letter on position 1 (l) changed: 11 words bugs dugs fugs hugs jugs mugs pugs rugs tugs vugs yugs Letter on position 2 (u) changed: 4 words lags legs ligs logs Letter on position 3 (g) changed: 5 words luds lues lums lurs luvs Letter on position 4 (s) changed: 1 word luge