Etymology: Middle English brood, from Old English brād; akin to Old High German breit broad
Date: before 12th century
a. having ample extent from side to side or between limits <broad shoulders> b. having a specified extension from side to side <made the path 10 feet broad> 2. extending far and wide ; spacious <the broad plains> 3. a. open, full <broad daylight> b. plain, obvious <a broad hint> 4. dialectal especially in pronunciation 5. marked by lack of restraint, delicacy, or subtlety: a. obsolete outspoken b. coarse, risque <broad humor> 6. of a vowel open — used specifically of a pronounced as in father 7. a. liberal, tolerant <broad views> b. widely applicable or applied ; general <a broad rule> 8. relating to the main or essential points <broad outlines> • broadly adverb • broadness noun Synonyms: broad, wide, deep mean having horizontal extent. broad and wide apply to a surface measured or viewed from side to side <a broad avenue>. wide is more common when units of measurement are mentioned <rugs eight feet wide> or applied to unfilled space between limits <a wide doorway>. broad is preferred when full horizontal extent is considered <broad shoulders>. deep may indicate horizontal extent away from the observer or from a front or peripheral point <a deep cupboard> <deep woods>. II. adverb Date: before 12th century in a broad manner ; fully <broad awake> III. noun Date: 1659 1. British an expansion of a river — often used in plural 2. often offensive woman
New Collegiate Dictionary. 2001.