<p><strong>Adjective</strong></p><ul><li>being in excess of the usual, proper, or prescribed number; additional; extra.</li><li>associated with a regular body or staff as an assistant or substitute in case of necessity.</li></ul><p><strong>Noun</strong></p><ul><li>plural supernumeraries.</li><li>a supernumerary or extra person or thing.</li><li>a supernumerary official or employee.</li><li>a person who appears in a play or film without speaking lines or as part of a crowd; walk-on; extra.</li></ul>