dinosaur: any chiefly terrestrial, herbivorous or carnivorous reptile of the extinct orders Saurischia and Ornithischia, from the Mesozoic Era, certain species of which are the largest known land animals.
noun: Some kids like their dinosaur toys to be more interactive.
fish: any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales.
noun: I ate very small fish for supper.
horseshoe: a U-shaped metal plate, plain or with calks, nailed to a horse's hoof to protect it from being injured by hard or rough surfaces.
noun: It was a great horseshoe crab the first one I had ever seen.