collateral Synonyms

accompanying surety parallel bond guarantee subordinate substantiating concomitant indirect confirmative confirmatory verifying guaranty corroborative corroboratory supporting deposit incidental confirming security validating pledge verificatory validatory secondary substantiative accessory attendant ancillary supplementary safeguard support safety Securities skirting supplemental superaddition sidelong sidepiece simultaneous sequent sub subalternate subsidiary secure side substract sib suretyship synchronal