an interjection, is used (a) in denunciation, Mat 11:21, Mat 18:7 (twice); eight times in ch. 23; Mat 24:19, Mat 26:24, Mar 13:17, Mar 14:21, Luk 1:6-25 (twice), Luk 6:26, Luk 10:13; six times in ch. 11; Luk 17:1, Luk 21:23, Luk 22:22, 1Co 9:16, Jud 1:11, Rev 8:13 (thrice); Rev 12:12; as a noun, Rev 9:12 (twice); Rev 11:14 (twice); (b) in grief, "alas," Rev 18:10,Rev 18:16,Rev 18:19 (twice in each).