unionist

noun

1. a person whose activities or beliefs are characterized by unionism.
2. a member of a trade union.
3. (initial capital letter) a supporter of the federal union of the United States of America, especially during the Civil War.
4. British Politics. (formerly) an upholder of the legislative union of Great Britain and Northern Ireland.

noun

1. (sometimes not capital)
   1. (before 1920) a supporter of the union of all Ireland and Great Britain
   2. (since 1920) a supporter of union between Britain and Northern Ireland
2. a supporter of the US federal Union, esp during the Civil War

adjective

3. of, resembling, or relating to Unionists

noun

1. a supporter or advocate of unionism or union
2. a member of a trade union

adjective

3. mainly British of or relating to union or unionism, esp trade unionism