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A plane figure having four equal sides.
(noun)
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Something having an equal-sided rectangular form: a square of cloth.
(noun)
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A T-shaped or L-shaped instrument for drawing or testing right angles.
(noun)
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Mathematics The product obtained when a number or quantity is multiplied by itself: 49 is the square of 7.
(noun)
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Games Any of the quadrilateral spaces on a board, as in chess.
(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.