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Synonyms for Adjunct (same or very similar meaning)

WordNet sense 1 (furnishing added support):
accessory, adjuvant, ancillary, appurtenant, auxiliary, subsidiary

WordNet sense 2 (furnishing support or assistance):

WordNet sense 3 (of or relating to a person who is subordinate to another):

WordNet sense 4 (lower in rank or importance):
low-level, subordinate

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