Collateral is a security or guarantee, usually represented by personal property of equal value, that a borrower must put up when they take out a loan.
A unilateral decision is entirely one-sided, involving only one facet of an issue or one country among many.
having identical parts on each side of an axis
pledge as a collateral
having all sides or faces equal
situated at or extending to the side
to or by or from the side
having many parts or sides
having four sides
involving three parties
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