<p><strong>Noun</strong></p><ul><li>either of two children or animals brought forth at a birth</li><li>either of two persons or things closely related to or closely resembling each other</li><li>twin bed</li><li>a type of hotel accommodation with twin beds, for occupancy by two persons</li><li>a compound crystal consisting of two or more parts or crystals definitely oriented each to the other (also called hemitrope)</li><li>the constellation or sign of Gemini</li></ul><p><strong>Adjective</strong></p><ul><li>being a twin or twins</li><li>being two persons or things closely related to or closely resembling each other</li><li>consisting of two similar parts or elements joined or connected</li><li>occurring in pairs; didymous</li><li>twofold or double</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to bring together in close relationship; pair; couple</li><li>to furnish a counterpart to or a replica of; match</li><li>to divide or convert into two, parts, similar items, etc.</li><li>to link or combine with</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to give birth to twins</li><li>to be paired or coupled</li><li>to match or resemble someone or something in a specific way</li></ul>