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).
“It should be understood that sidedness does not refer to the direction in which the opponent is thrown.”
“The degree to which channel amplitude was suppressed strongly depended on the sidedness of the polymer application.”
“It is also affected by sidedness, or the imbalance between quantities available for purchase and sale.”
siding
(rail transport) A second, relatively short length of track just to the side of a railroad track, joined to the main track by switches at one or both ends, used either for loading or unloading freight, storing trains or other rail vehicles; or to allow two trains on a same track to meet (opposite directions) or pass (same direction) (the latter sense is probably an American definition).