A straightforward numerical term meaning two thousand. Mark 5:13 uses it to describe the size of the herd of pigs into which Jesus permitted the demons to enter—about two thousand swine rushed down the steep bank into the sea and drowned. The specific number emphasizes the magnitude of both the demonic possession (the demons were called 'Legion') and the economic loss to the swineherds. Greek numerical adjectives like this one were standard vocabulary for counting and measurement.