The substitution of one thing for another, or of one person into the place of another with respect to rights, claims, or securities. Subrogation denotes the putting a third person who has paid a debt in the place of the creditor to whom he has paid it, so as that he may exercise against the debtor all SUBROGATION 1117 SUBSTANTIAL DAMAGES the rights which the creditor, if unpaid, might have done. Brown. The equity by which a person who is secondarily liable for a debt, and has paid it, is put in the place of the creditor, so as to entitle to make use of all the securities and remedies possessed by the creditor, in order to enforce the right of exoneration as against the principal debtor, or of contribution against others who are liable in the same rank as himself. Bisp. Eq.