the world > space > relative position > quality of having sides or being a side > [noun] > fact of having distinct sides > one or other side or hand > part lying to either hand (3)
A lateral part or appendage: in various connections. (See also senses 7–12.) A lateral or outlying portion of a space or region.
More generally: either of the two halves of any place, object, surface, etc., divided by an (imaginary) central line. Also figurative and in…