Free Z Sound Medial Words Flashcards Worksheet PDF. Printable flashcards featuring words with the medial “Z” sound can be a useful tool for improving pronunciation and vocabulary. Some of the words in this flashcards worksheet are:- Puzzle, Magazine, Lizard, Kazoo, Pretzel, Gauze, Scissors, Buzzard, Frozen, Buzzard, Sizzle, Muzzle, Fizzle, Razor, Blazer, Hazelnut