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Description
A square outline.

Symbol

 * 1)  A quadrilateral, usually referred to a square or rectangle.
 * 2)  quadrature.
 * 3)  salt.
 * 1)  quadrature.
 * 2)  salt.
 * 1)  quadrature.
 * 2)  salt.
 * 1)  quadrature.
 * 2)  salt.