side

A line bounding a plane figure.

A surface bounding a solid figure.

A surface of an object, especially a surface joining a top and bottom.

A surface of an object that extends more or less perpendicularly from an observer standing in front.

Either of the two surfaces of a thin, flat object.

The part within an object or area to the left or right of the observer or of its vertical axis.

The left or right half of the trunk of a human or animal body.