Real Dictionary

unite
verb: If a group of people or things unite or if something unites them, they join together and act as a group.

unite in American English 1
to become combined or joined together; become one or as one, by adhering, associating, etc.
to put or bring together so as to make one; combine or join into a whole
intransitive verb: to become joined together or combined so as to form a single whole
transitive verb: to join, combine, or incorporate so as to form a single whole or unit

unite in American English 2
a former English gold coin of James I, equal to 20 shillings
noun: a former gold coin of England, equal to 20 shillings, issued under James I and Charles I

Unite in British English
noun: (in Britain) a trade union formed in 2007 by the amalgamation of Amicus and the Transport and General Workers' Union

unite in British English 1
verb: to make or become an integrated whole or a unity; combine

unite in British English 2
noun: an English gold coin minted in the Stuart period, originally worth 20 shillings