'Three-square' definitions:

Definition of 'Three-square'

From: GCIDE
  • Three-square \Three"-square`\, a. Having a cross section in the form of an equilateral triangle; -- said especially of a kind of file. [1913 Webster]

Definition of 'Three-square'

From: GCIDE
  • 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]