<p><strong>Adjective</strong></p><ul><li>concealed or disguised; secret: covert behavior.</li><li>covert intelligence operations; covert behavior.</li><li>covered; sheltered.</li><li>(of a wife) under the protection of one's husband.</li></ul><p><strong>Noun</strong></p><ul><li>a covering; cover.</li><li>a shelter or hiding place.</li><li>concealment or disguise.</li><li>Hunting: a thicket giving shelter to wild animals or game.</li><li>Ornithology: one of the small feathers that cover the bases of the large feathers of the wings and tail.</li></ul>