Synonyms for collateral
noun
security, guarantee, pledge, promise, financial promise, insurance, endorsement, warrant, deposit; see also insurance, pledge, security 2.
See collateral in Webster's New World Roget's A-Z Thesaurus II
adjective
Lying in the same plane and not intersecting:
parallel. Idiom: side by side. See geometryGiving or able to give help or support:
accessory, ancillary, assistant, auxiliary, contributory, subsidiary, supportive. See helpIn a position of subordination:
dependent, subject, subordinate, subservient. See over, part
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