noun
a four-sided figure with at least one pair of parallel sides
adjective
describing or relating to a trapezoid
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The trapezoid is a quadrilateral with at least one pair of parallel sides.
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I struggled to remember the properties of a trapezoid for my math test.
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That trapezoid shape is so weird, it looks like a lopsided rectangle.
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Her thoughts were like a trapezoid, with some ideas parallel and others diverging.