<p><strong>verb</strong></p><ul><li>(used with object) to wrap up in or as in a covering: The long cloak she was wearing enveloped her completely.</li><li>To serve as a wrapping or covering for, as a membrane of an organ or a sheath.</li><li>To surround entirely.</li><li>Military: to attack (an enemy's flank).</li></ul><p><strong>noun</strong></p><ul><li>Envelope.</li></ul>