- (countable) A margin is the space on the sides of a page where there is no writing.
- If you own the book, write notes in the margin.
- (countable) A margin is the difference between what the winner has and what the loser has.
- The team won every game with an average 24-point victory margin per game.
- The Board of Education voted by a narrow margin to accept the new standards.
- Mitt Romney is leading in the latest polls by a slim margin, 29 percent of the vote to John McCain's 26 percent.
- (countable) A margin is the difference between what a business pays for something and what it sells it for.
- The current profit margins on those products run between 55 and 62 percent.
- (countable) A margin is extra time, room, money, etc. that you plan for in case something needs more.
- There's almost no margin for error with the landing the plane.
- The extra fuel that was carried along gave us a bit of a safety margin.
- (countable) A margin of error is the amount that the true value varies from the measured value.
- The poll had a margin of error of plus or minus 4 percentage points.
- We produce these pieced to be 2.5 meters long, with an overall error margin of 1.4 millimeters.
- If somebody is on the margin(s), they are not a central member and have little power.