Webster's English Dictionary

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union

Cross references:
  1. unity                 
 
1. union \'yu:-ny*n\ n [ME, fr. MF, fr. LL union-, unio oneness, union, fr. 
   unus one] - more at ONE 1a: an act or instance of uniting or joining two or 
   more things into one :  as 1a1: the formation of a single political unit 
   from two or more separate and  independent units 1a2: a uniting in 
   marriage; also : SEXUAL INTERCOURSE  1a3: the growing together of severed 
   parts  1b: a unified condition : COMBINATION, JUNCTION  2: something that 
   is made one : something formed by a combining or coalit ion of parts or 
   members : as 2a: a confederation of independent individuals (as nations or 
   persons) for  some common purpose 2b: a political unit constituting an 
   organic whole formed usu. from previou sly independent units (as England 
   and Scotland in 1707) which have surrendered their principal powers to the 
   government of the whole or a newly created government (as the U.S. in 1789) 
   cap  2c: an organization on a college or university campus providing 
   recreationa l, social, cultural, and sometimes dining facilities; also : 
   the building housing it 2d: SUM  3: a device emblematic of the union of two 
   or more sovereignties borne on a  national flag typically in the upper 
   inner corner or constituting the whole design of the flag 4: any of various 
   devices for connecting parts (as of a machine); esp  : a coupling for pipes 
   or pipes and fittings designed to facilitate connection or disconnection
2. union aj : of, relating to, dealing with, or constituting a union