Question: is azog the goblin or orc?
Answer: Incidentally, this is the only place that J.R.R. Tolkien refers to Azog as a "goblin"; in other books such as The Lord of the Rings, Tolkien describes him as a "great Orc." This is not a discrepancy, however, since in Tolkien's writings, goblin is merely a synonym of Orc.