square
US /skwer/
UK /skwer/

1.
a plane figure with four equal straight sides and four right angles
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Draw a perfect square on the paper.
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The table has a square top.
2.
3.
the product of a number multiplied by itself
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The square of 5 is 25.
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Calculate the square of 9.
1.
having four equal sides and four right angles
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The room has a square shape.
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He cut the cake into square pieces.
2.
fair and honest
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He's a very square dealer.
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We need to ensure a square deal for everyone.
1.
to multiply a number by itself
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If you square 4, you get 16.
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The architect needs to square the dimensions before construction.
2.
to make something straight or level
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Can you help me square up this picture frame?
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The carpenter used a tool to square the edges of the wood.