Flat

1. A price that is neither rising nor declining.

2. In forex, the condition of being neither long nor short in a particular currency. Also referred to as 'being square'.

3. A bond that is trading without accrued interest.

Investopedia Says:
1. If a stock over the last month has been trading around $30, it can be thought of as trading flat.

2. If you had no positions in the U.S. dollar or your long and short positions canceled each other out, you would be flat or have a flat book.

3. A bond is trading flat if the buyer of the bond is not responsible for paying the interest that has accrued since the last payment (accrued interest is usually part of the bond purchase price). Bonds that are in default trade flat.

Related Links:
Learn how to read these formations of horizontal trading patterns. Triangles: A Short Study in Continuation Patterns
Before entering this market, you should define what you need from your broker and from your strategy. Getting Started In Forex
Learn the complex concepts and calculations for trading bonds including bond pricing, yield, term structure of interest rates and duration. Advanced Bond Concepts

Direct mail: oversize piece of first, standard (a), or periodicals class mail that exceeds at least one of the dimensions for letter-size mail. Flat mail is more than 111/2 inches long, more than 61/8 inches high, or more than 1/4 inch thick. It may not exceed 15 inches long, 12 inches high, and 3/4 inch thick. Flats are handled by the U.S. Postal Service separately from other mail. The actual postage due is based on the weight, class, and presort level.

Printing:

1. Descriptive term for a photograph or print with little contrast between light and dark areas. See also gamma; high contrast.

2. Negatives or positives arranged on a goldenrod paper or other carrier surface, used to create a printing plate.

1. Bond traded without accrued interest. This happens if the transaction settlement date is the same as the semiannual interest payment date. Income bonds issued by companies in reorganization-interest is paid only if earned-and bonds in default usually are traded flat.

2. Market maker's position that is neither short nor long at the end of a trading session. The net exposure is zero.

3. Underwriter's position if all securities are sold from inventory.

4. In the foreign exchange market, broker's position in which commitments to buy a particular currency are identical to commitments to sell that currency. Also called a Square Position.

1. an apartment, generally on one level.
Example: A 2-room flat is an apartment having 2 rooms.

2. A Level Payment Mortgage or Lease requirement.
Example: A Flat lease is one that requires level payments each month or other specified period.