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Square a.

1. Geom. Having four equal sides and four right angles; as, a square figure.

2. Forming a right angle; as, a square corner.

3. Having a shape broad for the height, with rectilineal and angular rather than curving outlines; as, a man of a square frame.

4. Exactly suitable or correspondent; true; just.

*She's a most triumphant lady, if report be square to her.* --*Shak.*

5. Rendering equal justice; exact; fair; honest; as, square dealing.

6. Even; leaving no balance; as, to make or leave the accounts square.

7. Leaving nothing; hearty; vigorous.

By Heaven, square eaters.

More meat, I say. --*Beau. & Fl.*

8. Naut. At right angles with the mast or the keel, and parallel to the horizon; -- said of the yards of a square-rigged vessel when they are so braced.

Note: ☞ Square is often used in self-explaining compounds or combinations, as in square-built, square-cornered, square-cut, square-nosed, etc.

**Square foot**, an area equal to that of a square the sides of which are twelve inches; 144 square inches.

**Square knot**, a knot in which the terminal and standing parts are parallel to each other; a reef knot. See __Illust.__ under Knot.

**Square measure**, the measure of a superficies or surface which depends on the length and breadth taken conjointly. The units of square measure are squares whose sides are the linear measures; as, __square__ inches, __square__ feet, __square__ meters, etc.

**Square number**. See Square, n., 6.

**Square root of a number** *or* **Square root of a quantity** Math., that number or quantity which, multiplied by itself, produces the given number or quantity.

**Square sail** Naut., a four-sided sail extended upon a yard suspended by the middle; sometimes, the foresail of a schooner set upon a yard; also, a cutter's or sloop's sail boomed out. See __Illust.__ of Sail.

**Square stern** Naut., a stern having a transom and joining the counter timbers at an angle, as distinguished from a __round stern__, which has no transom.

**Three-square**, **Five-square**, etc., having three, five, etc., equal sides; as, a __three-square__ file.

**To get square with**, to get even with; to pay off. [Colloq.]