1 having four straight equal sides and 90º angles at the corners :
a large square room
shape
HM
a large square room2 forming a 90º angle, or being close to or similar to a 90º angle :
square corners
angle
HM
square corners3 an area of measurement equal to a square with sides a metre long, a mile long etc :
about four square metres of ground
square metre/mile etc
TM
about four square metres of ground4 having the shape of a square with sides that are 5 feet, 2 metres etc long :
The room is six metres square.
5 feet/2 metres etc square
TM
The room is six metres square.5 parallel with a straight line
level
[not before noun]7 if someone's body or a part of their body is square, it looks broad and strong :
a square jaw
body
a square jaw8 to have the same number of points as your opponent in a competition :
The teams were all square at the end of the first half.
all square
British English
The teams were all square at the end of the first half.11 someone who is square is boring and old-fashioned
boring
informal12 someone who is in a job or situation that is not suitable for them
a square peg in a round hole
informal —squareness noun [uncountable]

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