<p><strong>Verb</strong></p><ul><li>(used with object) To stop the flow of (a liquid, especially blood).</li><li>To stop the flow of blood or other liquid from (a wound, leak, etc.).</li><li>Archaic: To check, allay, or extinguish.</li><li>(used without object) To stop flowing, as blood; be stanched.</li></ul><p><strong>Noun</strong></p><ul><li>Also called flash-lock: A lock that, after being partially emptied, is opened suddenly to send a boat over a shallow place with a rush of water.</li></ul>