Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun someone who belongs to a group that secretly
undermines anotherorganization
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a member of a clandestine subversive organization who tries to help a potential invader
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From fifth column + -ist
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Examples
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