squaresquaresquares2noun1a shape with four straight sides that are the same length2an open space in a town with buildings around it: Trafalgar Square is in London.the town square3(maths) the number that you get when you multiply another number by itself: Four is the square of two (= 2 x 2 = 4).squaresquaresquarersquarest1adjectivepronunciationThe word square ends with the same sound as stair.1with four straight sides that are the same length: a square table2(abbr.sq) used for talking about the area of something: If a room is 5 metres long and 4 metres wide, its area is 20 square metres.3(used about something that is square in shape) having sides of a particular length: The picture is twenty centimetres square (= each side is 20cm long).