square

1 square /ˈskweɚ/ noun
plural squares
1 square
/ˈskweɚ/
noun
plural squares
Britannica Dictionary definition of SQUARE
[count]
1 
: a four-sided shape that is made up of four straight sides that are the same length and that has four right angles
— often + of — see picture at geometry; compare rectangle
2 
: any of the squares on a board for playing games (such as chess and checkers) — see picture at chess
3 
mathematics : the number that results from multiplying a number by itself — compare 1cube 2
4 
: an open area in a village, city, etc., where two or more streets meet
5 
somewhat old-fashioned, informal + disapproving : someone who does not like or try unusual things that other people consider exciting, interesting, etc.
6 
technical : a flat tool that is used to mark or check angles — see picture at carpentry; compare t square
7 
chiefly US, informal : square meal
2 square /ˈskweɚ/ adjective
squarer; squarest
2 square
/ˈskweɚ/
adjective
squarer; squarest
Britannica Dictionary definition of SQUARE
[also more square; most square]
1 
a  : shaped like a square : having four straight sides that are the same length and four right angles at each corner
b  : forming a right angle
2 
— used to describe a measurement that is produced by multiplying something's length and width
— compare cubic
3 
: shaped more like a right angle than a curve
◊ This sense of square often suggests strength and toughness.
4 
somewhat old-fashioned : honest and fair — see also fair and square at 1fair
5 
somewhat old-fashioned, informal + disapproving — used to describe someone who does not like or try unusual things that other people consider exciting, interesting, etc.
6 
a  informal : having nothing owed by either side : even
b  not used before a noun : having the same number of points : tied

a square peg in a round hole

— see 1peg
3 square /ˈskweɚ/ verb
squares; squared; squaring
3 square
/ˈskweɚ/
verb
squares; squared; squaring
Britannica Dictionary definition of SQUARE
[+ object]
1 
: to make (something) square : to give (something) straight edges, flat surfaces, or sharp, even corners — often + off
2 
mathematics : to multiply (a number) by itself — usually used as (be) squared — compare 2cube 2
3 
: to pay money that is owed for (something) — often + up
4 
: to make the score of (something, such as a game or series) the same : tie

square away

[phrasal verb]
square (something) away or square away (something) US
: to put (something) in an organized and proper state or condition — often used as (be/get) squared away

square off

[phrasal verb]
1 
a  : to prepare to fight : to get into the position of two people who are going to fight each other
b  : to fight or argue — often + against
2 
: to compete in a contest — often + against
— see also 3square 1 (above)

square up

[phrasal verb]
1 
: to turn so that you are facing something or someone directly
— see also 3square 3 (above)
2 
square up to (someone or something) : to begin to deal with (a difficult person or situation) in a direct way

square with

[phrasal verb]
1 
square with (something) : to agree with (something)
2 
square (something) with (something) : to make (something) agree with (something)
3 
square (something) with (someone) : to get agreement about or approval of (something) from (someone)

square yourself

: to turn so that you are facing something or someone directly

square your shoulders

: to stand with your shoulders pulled back in a straight line in a way that shows you are ready to do or deal with something directly
4 square /ˈskweɚ/ adverb
4 square
/ˈskweɚ/
adverb
Britannica Dictionary definition of SQUARE
: in a direct way