on, towards, or relating to the side of a human body or of a thing that is to the west when the person or thing is facing north

her left eye

the left side of the road

relating to or denoting a person or group favouring left-wing views; socialist or progressive

left politics

on or to the left side

turn left here

keep left

she looked left and right

the left-hand part, side, or direction

turn to the left

the general sat to his left

a group or party favouring left-wing, socialist, or progressive views

the Left is preparing to fight presidential elections

he is on the left of the party

go away from

she left London on June 6

we were almost the last to leave

the England team left for Pakistan on Monday

allow or cause to remain

the parts he disliked he would alter and the parts he didn't dislike he'd leave

cause (someone or something) to be in a particular state or position

he'll leave you in no doubt about what he thinks

I'll leave the door open

the children were left with feelings of loss

(of a plant) put out new leaves

trees leaved, wild flowers burst in profusion on the far side of the lake.