• A security or guarantee (usually an asset) pledged for the repayment of a loan if one cannot procure enough funds to repay.
  • A collateral (not linear) family member.
  • A branch of a bodily part or system of organs.
  • Printed materials or content of electronic media used to enhance sales of products (short form of collateral material).
  • A thinner blood vessel providing an alternate route to blood flow in case the main vessel becomes occluded.
  • A contemporary or rival.


  • Recorded since c.1378, from Old French, from Medieval Latin collaterālis, from Latin col- (a form of con-) + the stem of latus.

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