<p><strong>Adverb</strong></p><ul><li>on or toward the back of the stage.</li></ul><p><strong>Adjective</strong></p><ul><li>of, relating to, or located at the back of the stage; haughtily aloof; supercilious.</li></ul><p><strong>Verb</strong></p><ul><li>past participle of upstage; to overshadow (another performer) by moving upstage and forcing the performer to turn away from the audience; to outdo professionally, socially, etc.; to behave snobbishly toward.</li></ul><p><strong>Noun</strong></p><ul><li>the rear half of the stage; any stage position to the rear of another.</li></ul>