1) Borders 2) Brims 3) Edges 4) Limits 1) Borders 2) Spoil whiskies 
Profit divided by sales. One of several measures that differ in the definition of profit used....more on Margins
margins frame an opening or emphasise the angle of a building; most are raised (usually adopted when the building was to be harled but sometimes used decoratively) but some are chamfered and some are backset (ie recessed from the plane of the harl or render). (Illustration) 
The area of tissue surrounding a tumour when it is removed by surgery. ... (09 Oct 1997) ... 
Profit margin is trading profit as a percentage of revenue. Reflects the underlying profitability of the business, not whether the company is making money for shareholders. It is calculated before interest charges and tax. In financial markets, a margin is a deposit required to make a transaction.