Meaning of “off” - Learner’s Dictionary

off

adverb, preposition us uk /ɒf/
We licked the chocolate off our fingers.The paint is starting to peel off the wall.You'll have to let the glue dry and then you can pick it off.The car came off the road and plunged down the hillside.By winter, all the leaves had fallen off the trees.
NOT TOUCHING

A2 not touching or connected to something or not on a surface:

Keep off the grass!
A button came off my coat.
AWAY

B1 away from a place or position:

He ran off to find his friend.
I'll be off (= will go) soon.
NOT OPERATING

A2 not operating or being used:

Make sure you switch your computer off.
NEAR

B2 near to a building or place:

an island off the coast of Spain
PRICE

B1 If a price has a certain amount of money off, it costs that much less than the usual price:

These jeans were $10 off.
DISTANCE/TIME

far in distance or time:

You can see the village off in the distance.
My holidays seem a long way off.
go off sth/sb UK

B2 to stop liking something or someone:

I've gone off meat.
NOT AT WORK

A2 not at work:

I had 6 months off when my son was born.
→ See also off the cuff , on and off

(Definition of “off adverb, preposition” from the Cambridge Learner’s Dictionary © Cambridge University Press)