Functions as an attributive noun modifying another noun (e.g., "hunting knife").
Definitions
Used attributively to describe equipment, events, or conditions associated with the activity of hunting. He packed his hunting gear before dawn.
huntinggerund / present participle Used before a noun to describe something connected with or intended for the activity of hunting.
Definitions
Relating to or designed for the pursuit and killing of wild animals. He bought a new hunting rifle before the deer season opened.