1) Ghost 
Haunter, known in Japan as Gōsuto, is a Pokémon species in Nintendo and Game Freak`s Pokémon franchise. Designed by Game Freak and originally intended to be renamed Spectre for North American audiences, their name is a derivative of the verb `to haunt`, and is both the singular and plural name of the species. First appearing in Pokémon Red ......
• (n.) One who, or that which, haunts.
Haunt'er (-ẽr) noun One who, or that which, haunts.