Entry 3 senses · 3 variants Webster, 1913 Brig /brĭg/ · IPA /bɹɪɡ/ n. n. n. 01 n. A bridge. 1. A bridge.[Scot.] 02 n. A two-masted, square-rigged vessel. 1. A two-masted, square-rigged vessel.(Naut.) Phrases & compounds Hermaphrodite brig — a two-masted vessel square-rigged forward and schooner-rigged aft. See Illustration in Appendix. 03 n. On a United States man-of-war, the prison or place of confinement for offenders. 1. On a United States man-of-war, the prison or place of confinement for offenders.(Nav.)