∙ The edge of the paper that remains blank. typography
∙ The edge or border of any flat surface.
∙ The edge defining inclusion in or exclusion from of a set or group. figuratively
∙ A difference between results, characteristics, scores.
∙ A permissible difference; allowing some freedom to move within limits.
∙ The yield or profit; the selling price minus the cost of production. finance
∙ Collateral security deposited with a broker to secure him from loss on contracts entered into by him on behalf of his principial, as in the speculative buying and selling of stocks, wheat, etc. finance