大おお軍いくさMeanings1noungreat war; great battleRefers to a large-scale war or major battle. The reading おおいくさ is distinct from たいぐん (large army). Cross-referenced with 大戦 (たいせん).See also: 大戦 (たいせん)この地ちで大おお軍いくさが繰くり広ひろげられた。A great battle was fought on this land.