Pronunciation: (yOOn'yu-nist), [key]
1. a person whose activities or beliefs are characterized by unionism.
2. a member of a trade union.
3. (cap.) a supporter of the federal union of the United States of America, esp. during the Civil War.
4. Brit. Politics.(formerly) an upholder of the legislative union of Great Britain and Northern Ireland.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.