Definitions of square:

• noun:   a hand tool consisting of two straight arms at right angles; used to construct or test right angles

  Example: "The carpenter who built this room must have lost his square"

• noun:   any artifact having a shape similar to a plane geometric figure with four equal sides and four right angles

  Example: "A checkerboard has 64 squares"

• noun:   a formal and conservative person with old-fashioned views
• noun:   someone who doesn't understand what is going on
• noun:   the product of two equal terms

  Example: "Gravity is inversely proportional to the square of the distance"

• noun:   (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon

  Example: "You can compute the area of a square if you know the length of its sides"

• noun:   something approximating the shape of a square
• noun:   an open area at the meeting of two or more streets
• verb:   pay someone and settle a debt

  Example: "I squared with him"

• verb:   be compatible with

  Example: "One idea squares with another"

• verb:   cause to match, as of ideas or acts
• verb:   raise to the second power
• verb:   make square

  Example: "Square the circle"

• verb:   position so as to be square

  Example: "He squared his shoulders"

• verb:   turn the oar, while rowing
• verb:   turn the paddle; in canoeing
• adjective:   characterized by honesty and fairness

  Example: "A square deal"

• adjective:   having four equal sides and four right angles or forming a right angle

  Example: "A square peg in a round hole"

• adjective:   rigidly conventional or old-fashioned
• adverb:   firmly and solidly

  Example: "Hit the ball squarely"

• adverb:   in a square shape

  Example: "A squarely cut piece of paper"

• adverb:   with honesty and fairness

  Example: "Dealt squarely with his customers"

• adverb:   in a straight direct way

  Example: "Looked him squarely in the eye"

• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #11624)