C*ck (male chicken), W*nk (town in South Germany), T*ts (species of small bird), Shi'ite (denomination of Islam), F*cker (German coach travel company), Tw*tt (near Quoyloo, Orkney, UK), Sh*g (type of tobacco, pile on rug and species of bird), B*st*rd (child of unmarried parents), B*gg*r (the verb for the act of sodomy), Kunt (first and third person singular and second person singular formal form of the verb "kunnen", which means "to be able to" in Dutch).
I kinda failed tho, 'cause these words wouldn't slip through the profanity filter until I masked them with ast*risks.