the action of joining together or the fact of being joined together, especially in a political context

he was opposed to closer political or economic union with Europe

a currency union between the two countries

a society or association formed by people with a common interest or purpose

members of the Students' Union

a political unit consisting of a number of states or provinces with the same central government

the set that comprises all the elements (and no others) contained in any of two or more given sets

a joint or coupling for pipes

(in South Asia) a local administrative unit comprising several rural villages

a part of a flag with an emblem symbolizing national union, typically occupying the upper corner next to the staff

a fabric made of two or more different yarns, typically cotton and linen or silk