Read the dictionary definition of margin. All definitions for this word.
1. a permissible difference; allowing some freedom to move within limits
2. an amount beyond the minimum necessary
1. the margin of victory
3. the blank space that surrounds the text on a page
1. he jotted a note in the margin
4. (finance) the net sales minus the cost of goods and services sold
5. the amount of collateral a customer deposits with a broker when borrowing from the broker to buy securities
6. the boundary line or the area immediately inside the boundary