You found all the words!
10x10 grid, horizontal and vertical only, forward direction only
12x12 grid, horizontal and vertical, forward and backward directions
14x14 grid, all directions (horizontal, vertical, diagonal), forward and backward
Elephant, Giraffe, Penguin, and more
Planet, Galaxy, Nebula, and more
Pizza, Burger, Sushi, and more
Forest, Mountain, Ocean, and more
Red, Blue, Green, and more
Football, Basketball, Tennis, and more
America, England, France, and more
Doctor, Teacher, Engineer, and more