margin

Noun

• a permissible difference; allowing some freedom to move within limits

• the blank space that surrounds the text on a page
  • he jotted a note in the margin
    

• (finance) the net sales minus the cost of goods and services sold

• the amount of collateral a customer deposits with a broker when borrowing from the broker to buy securities

• an amount beyond the minimum necessary
  • the margin of victory
    

• the boundary line or the area immediately inside the boundary

Related words

• Synonyms: 
  allowance , leeway , tolerance , gross profit , gross profit margin , security deposit , border , perimeter