<p><strong>Noun</strong></p><ul><li>a person who has authority, control, or power over others; a master, chief, or ruler.</li><li>a person who exercises authority from property rights; an owner of land, houses, etc.</li><li>a person who is a leader or has great influence in a chosen profession: the great lords of banking.</li><li>a feudal superior; the proprietor of a manor.</li><li>a titled nobleman or peer; a person whose ordinary appellation contains by courtesy the title Lord or some higher title.</li><li>Lords, the Lords Spiritual and Lords Temporal comprising the House of Lords.</li><li>Lord, (in Britain) the title of certain high officials (used with some other title, name, or the like): Lord Mayor of London.</li><li>the formally polite title of a bishop: Lord Bishop of Durham.</li><li>the title informally substituted for Marquis, Earl, Viscount, etc., as in the use of Lord Kitchener for Earl Kitchener.</li><li>Lord, the Supreme Being; God.</li><li>Lord, Christianity, the Savior, Jesus Christ.</li><li>Astrology, a planet having dominating influence.</li></ul><p><strong>Interjection</strong></p><ul><li>Often Lord. (used in exclamatory phrases to express surprise, elation, etc.): Lord, what a beautiful day!</li></ul>