The answer is E, thump. The other four words are all sounds that animals make. Neigh is the sound that a horse makes, roar is the sound that a lion makes, hiss is the sound that a snake makes, and grunt is the sound that a pig makes. Thump is not a sound that an animal makes. It is a sound that can be made by a variety of objects, such as a person’s footsteps or a drum.
Neigh is a high-pitched sound that horses make, typically when they are excited or calling for attention. Roar is a deep, loud sound that lions make, typically when they are warning off predators or attracting mates. Hiss is a sharp, high-pitched sound that snakes make, typically when they are threatened or about to attack. Grunt is a low, guttural sound that pigs make, typically when they are eating or being fed. Thump is a loud, heavy sound that is made when something hits the ground or another object with force.