An Encylopedia Britannica Company

unionist

unionist /ˈjuːnjənɪst/ noun
plural unionists
unionist
/ˈjuːnjənɪst/
noun
plural unionists
Britannica Dictionary definition of UNIONIST
[count]
: someone who supports labor unions
Unionist : a supporter of the Union (sense 4b) during the American Civil War
Unionist : a person who believes that Northern Ireland should remain a part of the United Kingdom

— unionism

/ˈjuːnjəˌnɪzəm/ noun [noncount]