<p><strong>Verb (used without object)</strong></p><ul><li>to engage in battle or in single combat; attempt to defend oneself against or to subdue, defeat, or destroy an adversary</li><li>to contend in any manner; strive vigorously for or against something</li><li>to have an angry argument or disagreement</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to contend with in battle or combat; war against</li><li>to contend with or against in any manner</li><li>to carry on (a battle, duel, etc.)</li><li>to press or aggressively pursue (an argument, cause, contentious issue, etc.)</li><li>to make (one's way) by contending or striving</li><li>to cause or set (a boxer, animal, etc.) to fight</li><li>to manage or maneuver (troops, ships, guns, planes, etc.) in battle</li></ul><p><strong>Noun</strong></p><ul><li>a battle or combat</li><li>any contest or struggle</li><li>an angry argument or disagreement</li><li>a bout or contest (in boxing)</li><li>a game or diversion in which the participants hit or pelt each other with something harmless</li><li>ability, will, or inclination to fight</li></ul>