Wide in extent from side to side: a broad river; broad shoulders. Large in expanse; spacious: a broad lawn. Having a certain width from side to side: A sidewalk three feet broad. Full; open: broad daylight. Covering a wide scope; general: a broad rule. Liberal; tolerant: had broad views regarding social services. See Synonyms at broad-minded. Relating to or covering the main facts or the essential points. Plain and clear; obvious: gave us a broad hint to leave. Obsolete Outspoken. Vulgar; ribald: a broad joke. Strikingly regional or dialectal: a broad Southern accent. Linguistics Pronounced with the tongue placed low and flat and with the oral cavity wide open, like the a in father. A wide flat part, as of one's hand. Often Offensive Slang A woman or girl. Fully; completely.