<p><strong>Noun</strong></p><ul><li>An item of incidental information.</li><li>Either of two lights carried by a vessel under way at night, a red one on the port side and a green on the starboard.</li><li>Lights coming from the side.</li><li>A window or other aperture for light in the side of a building, ship, etc.</li><li>A window at the side of a door or another window.</li></ul><p><strong>End of Response</strong></p>