Marge (noun)

1. A margin or edge, especially one that surrounds and defines something.
2. A border or limit beyond which something cannot or should not go.
3. A difference or disparity between two amounts or values.

Origin:

The word marge likely comes from the middle english word "margent," meaning margin or edge.

Examples:

1. She wrote notes along the marge of the page to remember important points.
2. The marge of the cliff was a dangerous place to be, with a steep drop to the ocean below.
3. The company set a marge for how much each department could spend on supplies each quarter.
4. The marge between the two teams was only one point at halftime.
5. The marge between the cost of living and the average salary was growing larger each year.