Meaning of “left-hand” - Learner’s Dictionary

left-hand

adjective [ always before noun ] uk us /ˌleftˈhænd/

A2 on the left:

a left-hand drive car (= car which you drive sitting on the left-hand side)
The swimming pool is on the left-hand side of the road.

(Definition of “left-hand” from the Cambridge Learner’s Dictionary © Cambridge University Press)