n. 1. The sentiment of attachment to a federal union, especially to the federal union of the United States. [ 1913 Webster ]
2. The principles, or the system, of combination among workmen engaged in the same occupation or trade. [ 1913 Webster ]
n. 1. One who advocates or promotes union; especially a loyal supporter of a federal union, as that of the United States. [ 1913 Webster ]
2. A member or supporter of a trades union. [ 1913 Webster ]
a. Of or pertaining to union or unionists; tending to promote or preserve union. [ 1913 Webster ]