Definitions
1.verbTo ally oneself, be in an alliance, usually with "with" or rarely "in with""Which will you side with, good or evil?"
2.verbTo lean on one side.
3.verbTo be or stand at the side of; to be on the side toward.
4.verbTo suit; to pair; to match.
5.verbTo work (a timber or rib) to a certain thickness by trimming the sides.
6.verbTo furnish with a siding."to side a house"
7.verbTo provide with, as a side or accompaniment.
8.verbTo clear, tidy or sort.