(noun, adjective)


1. descended from a common ancestor but through different lines

- cousins are collateral relatives

Similar word(s): related, indirect

2. serving to support or corroborate

- collateral evidence

Similar word(s): supportive, confirmative, confirmatory, confirming, corroborative, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifying

3. additional but secondary; auxiliary

Similar word(s): secondary

4. situated or running side by side

- collateral ridges of mountains

Similar word(s): parallel

5. occurring with or following as a consequence

- collateral target damage from a bombing run

Similar word(s): subsequent, accompanying, attendant, concomitant, consequent, ensuant, incidental, resultant, sequent

Sentences with collateral as an adjective:

- Although not a direct cause, the border skirmish was certainly a collateral incitement for the war.

- Uncles, aunts, cousins, nephews and nieces are collateral relatives.

- collateral pressure


1. a security pledged for the repayment of a loan

Definition categories: possession

Sentences with collateral as a noun:

- Besides the arteries blood streams through numerous veins we call collaterals