- Square root of a number
- Square Square (skw[^a]r), a.
1. (Geom.) Having four equal sides and four right angles; as,
a square figure.
[1913 Webster]
2. Forming a right angle; as, a square corner. [1913 Webster]

3. Having a shape broad for the height, with rectilineal and angular rather than curving outlines; as, a man of a square frame. [1913 Webster]

4. Exactly suitable or correspondent; true; just. [1913 Webster]

She's a most triumphant lady, if report be square to her. --Shak. [1913 Webster]

5. Rendering equal justice; exact; fair; honest; as, square dealing. [1913 Webster]

6. Even; leaving no balance; as, to make or leave the accounts square. [1913 Webster]

7. Leaving nothing; hearty; vigorous. [1913 Webster]

By Heaven, square eaters. More meat, I say. --Beau. & Fl. [1913 Webster]

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. [1913 Webster]

Note: Square is often used in self-explaining compounds or combinations, as in square-built, square-cornered, square-cut, square-nosed, etc. [1913 Webster]

{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.] [1913 Webster]

*The Collaborative International Dictionary of English.
2000.*