One half (left or right, top or bottom, front or back, etc.) of something or someone.
A region in a specified position with respect to something.
The portion of the human torso usually covered by the arms when they are not raised; the areas on the left and right between the belly or chest and the back.
One surface of a sheet of paper (used instead of "page", which can mean one or both surfaces.)
(Britain, Australia, Ireland, dated) A television channel, usually as opposed to the one currently being watched (from when there were only two channels).