Number multiplied by itself once.

Average of squared differences values.

Unit of area measurement standard.

Unit of area, side squared.

Area measuring one mile squared.

Align sides perpendicular to another.

Unit of area measurement metric.

Enclosures used for lists, clarification.

Commercial hub, iconic New York.

Washington Square, originally designated in 1682 as Southeast Square, is a open-space park in Center City, Philadelphia, The southeast quadrant and one of the five original planned squares laid out on the city grid by William Penn's surveyor, Thomas Holme.

Unit of area measurement metric.