definition of
square

[1] #1 square n. [foursquare] (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon; "you can compute the area of a square if you know the length of its sides". wn

[2] #2 square a. having four equal sides and four right angles or forming a right angle; "a square peg in a round hole"; "a square corner". wn

[3] #3 square v. [square up] make square; "Square the circle"; "square the wood with a file". wn

[4] #4 square r. [squarely] in a straight direct way; "looked him squarely in the eye"; "ran square into me". wn

[5] #5 square n. [second power] the product of two equal terms; "nine is the second power of three"; "gravity is inversely proportional to the square of the distance". wn