Thornburgh rhymes with:
thornberg, thornburg, doernberg, hornburg, kornberg, thornberg, thornburg, doernberg, hornburg, kornberg, thornberg, thornburg
Thornburgh sounds like:
thornberg, thornberry's, thornberrys, thornburg, thornburg's, thornburgh's, thornburghs, thornburgs, thornbury's, thornburys, tranberg, turnovers