Longman Dictionary of Contemporary English homepage

Topic: MATHS

Date: 1200-1300
Language: Old French
Origin: esquarre, from Vulgar Latin exquadra, from exquadrare 'to make square', from Latin quadrare 'to make square, fit'

square

2 noun
     
square2 S2 [countable]
1

shape

HM a shape with four straight equal sides with 90º angles at the corners [↪ rectangle]:
First of all, draw a square.
square of
a small square of cloth
2

in a town

AATB a large open area in the centre of a town or city, usually in the shape of a square, or the buildings surrounding it
main/market/town square
The hotel is just off the main square of Sorrento.
She lives in Hanover Square.
3

square one

the situation from which you started to do something
be back to/at square one
The police are now back at square one in their investigation.
go back to square one (=used when you start something again because you were not successful the first time)
Okay, let's go back to square one and try again.
from square one
I've had to relearn the game from square one.
4

number

HMN the result of multiplying a number by itself [↪ square root]
square of
The square of 4 is 16.
5

in a game

DGB a space on a board used for playing a game such as chess
6

person

informal someone who is considered boring and unfashionable [= nerd]
7

tool

also set squareTZ a flat object with a straight edge, often shaped like an L, used for drawing or measuring 90° angles
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