• Bengali Word কুসীদ, কুশীদ English definition (noun) 1 the business of making loans at extortionate rates of interest; usury. 2 interest on loan, usually at very high rate. কুসীদজীবী (noun) one who makes his living by lending out money at exorbitant rates of interest; a usurer. কুসীদ ব্যবহার (noun) the practice of usury.