left

Designating the side of the body toward the west when one is facing north; the opposite of right. This arrow points to the reader's left: ←

(geography) Designating the bank of a river (etc.) on one's left when facing downstream (i.e. facing forward while floating with the current); that is, the north bank of a river that flows eastward. If this arrow: ⥲ shows the direction of the current, the tilde is on the left side of the river.

(politics) Left-wing; pertaining to the political left.