From pelomai (to bustle); warfare (literally or figuratively; a single encounter or a series) -- battle, fight, war.
1. properly,
a. war: Matthew 24:6; Mark 13:7; Luke 14:31; Luke 21:9; Hebrews 11:31; in imitation of the Hebrew מִלְחָמָה עָשָׂה followed by אֵת or עִם (Genesis 14:2; Deuteronomy 20:12, 20), πόλεμον ποιεῖν μετά τίνος, Revelation 11:7; Revelation 12:17; Revelation 13:7 (here L omits; WH Tr marginal reading brackets the clause); b. a fight, a battle (more precisely μάχη; "in Homer (where Iliad 7, 174 it is used even of single combat) and Hesiod the sense of battle prevails; in Attic that of tear" (Liddell and Scott, under the word); cf. Trench, § 86:and (in partial modification) Schmidt, chapter 138, 5 and 6): 1 Corinthians 14:8; Hebrews 11:34; Revelation 9:7, 9; Revelation 12:7; Revelation 16:14; Revelation 20:8. 2. a dispute, strife, quarrel: πόλεμοι καί μάχαι, James 4:1 (Sophocles El. 219; Plato, Phaedo, p. 66 c.).