Definition of margins:
(n) :
(finance) The yield or profit; the selling price minus the cost of production.
(n) :
(finance) Collateral security deposited with a broker, to compensate the broker in the event of loss in the speculative buying and selling of stocks, commodities, etc.
(n) :
A difference or ratio between results, characteristics, scores.
(n) :
A permissible difference; allowing some freedom to move within limits.
(n) :
(figuratively) The edge defining inclusion in or exclusion from a set or group.
(n) :
(typography) The edge of the paper, typically left blank when printing but sometimes used for annotations etc.