<p><strong>Noun</strong></p><ul><li>A deep notch formed in or near one edge of a board, framing timber, etc., so that something else can be fitted into it or so that a door or the like can be closed against it.</li><li>A broad groove let into the surface of a board or the like; dado.</li></ul><p><strong>Verb</strong></p><ul><li>To cut a rabbet in (a board or the like).</li><li>To join (boards or the like) by means of a rabbet or rabbets.</li><li>To join by a rabbet (usually followed by on or over).</li></ul>