<p><strong>Noun</strong></p><ul><li>A place or building equipped and used for making observations of astronomical, meteorological, or other natural phenomena, especially a place equipped with a powerful telescope for observing the planets and stars.</li><li>An institution that controls or carries on the work of such a place.</li><li>A place or structure that provides an extensive view; lookout.</li></ul><p><strong>End of Response</strong></p>