Definition of square
(Entry 1 of 4)
1
: an instrument having at least one right angle and two straight edges used especially to lay out or test right angles
2
: a rectangle with all four sides equal
3
: any of the quadrilateral spaces marked out on a board for playing games
4
: the product of a number multiplied by itself
5a
: an open place or area formed at the meeting of two or more streets
b
: block sense 6a
6
: a solid object or piece approximating a cube or having a square as its largest face
7
: an unopened cotton flower with its enclosing bracts
8
: a person who is conventional or conservative in taste or way of life
9
: a square meal
ate three squares a day
on the square
out of square
1
: at right angles
2
: in a fair open manner : honestly
: not at an exact right angle
square
adjective
squarer; squarest
Definition of square (Entry 2 of 4)
1a
: having four equal sides and four right angles
b
: forming a right angle
square corner
c
: having a square base
a square pyramid
2
: raised to the second power
3a
: being approximately a cube
square cabinet
b
: having a shape that is broad for the height and rectangular rather than curving in outline
square shoulders a square, thick, hardworking man— Maria Edgeworth
c
: rectangular and equilateral in section
square tower
4a
: being or converted to a unit of area equal in measure to a square each side of which measures one unit of a specified unit of length
a square foot
— see Metric System Table, Weights and Measures Table
b
: being of a specified length in each of two equal dimensions
10 feet square
5a
: exactly adjusted : precisely constructed or aligned
c
: leaving no balance : settled
e
: substantial, satisfying
square meal
f
: being unsophisticated, conservative, or conventional
6
: set at right angles with the mast and keel
—used of the yards of a squarerigged ship
square
verb
squared; squaring
Definition of square (Entry 3 of 4)
1a
: to make square or rectangular
square a building stone
b
: to test for deviation from a right angle, straight line, or plane surface
2
: to bring approximately to a right angle
squared his shoulders
3a
: to multiply (a number) by itself : raise to the second power
b
: to find a square equal in area to
square a circle
4
: to regulate or adjust by or to some standard or principle
square our actions by the opinions of others— John Milton
6
: to mark off into squares
1
: to agree precisely : correspond
your actions should square with your words
2
: to settle matters
especially
: to pay the bill
square
adverbDefinition of square (Entry 4 of 4)
1
: in a straightforward or honest manner
2a
: so as to face or be facetoface
b
: at right angles
3
: with nothing intervening : directly
ran square into it
4
: in a firm manner
looked her square in the eye
5
: in a square shape
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MerriamWebster unabridged
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Time Traveler for square
The first known use of square was in the 13th century
See more words from the same century