Side; the flank or part of something; also used to indicate one's side or position (as a suffix, e.g., ～側).
机の側にカバンを置いておいてください。
Please put your bag by the side of the desk.
彼は会議で会社側の意見を述べた。
He voiced the company's side at the meeting.
窓側の席を予約してください。
Please reserve a window-side seat.
(Specialized) the case or outer side (e.g., of a watch) — a limited technical/archaic usage.
懐中時計の側が傷ついて、修理に出した。
The case of the pocket watch was scratched, so I sent it for repair.