<p><strong>Noun</strong></p><ul><li>the act of uniting two or more things.</li><li>the state of being united.</li><li>something formed by uniting two or more things; combination.</li><li>a number of persons, states, etc., joined or associated together for some common purpose.</li><li>a group of states or nations united into one political body.</li><li>the United States.</li><li>a device emblematic of union, used in a flag or ensign.</li><li>the act of uniting or an instance of being united in marriage or sexual intercourse.</li><li>an organization of workers; a labor union.</li><li>Mathematics: the set consisting of elements each of which is in at least one of two or more given sets.</li><li>the process or result of merging or integration of disjoined, severed, or fractured elements.</li><li>any of various contrivances for connecting parts of machinery or the like.</li><li>Textiles: a fabric of two kinds of yarn.</li></ul>