Rectangle (noun)

1. A geometric shape that has four straight sides and four right angles (90 degree angles) and opposite sides are parallel to each other.
2. A flat shape with four straight sides and four angles, especially one with unequal adjacent sides.
3. A shape that is similar to a square but with unequal sides.

Origin:

The word "rectangle" comes from the latin word "rectangulus" which means "right angled" which came into use in the early 17th century. a rectangle is a geometric shape that has four straight sides and four right angles (90 degree angles) and opposite sides are parallel to each other.

Examples:

1. The room is in the shape of a rectangle.
2. A rectangle has four right angles.
3. The picture frame is a rectangle.
4. The pool is rectangular in shape.
5. The tablecloth is a rectangle shape.