This means to go out or exit a place. You stop being there and go somewhere else.
I leave the house at eight o'clock.
She leaves the room quietly every day.
This use means to let someone do something or not stop them. It shows permission or not interrupting.
I leave my children to play outside.
She leaves him to finish the work alone.
Here, leave means to stop doing something or to stop having something. It often shows quitting a habit or action.
He leaves smoking for his health.
They leave the job after ten years.
This means not to move or change something and let it stay as it is in a place.
Please leave the door open.
She leaves her books on the table.
Leave as a noun means time when you are allowed not to work. It is often for rest, health, or personal matters.
She has two weeks of leave every year.
He takes leave to visit his family.
This use of leave is permission given to be away from work or duty for a reason like illness or travel.
She asked for leave to attend the meeting.
He got leave to travel abroad.
This means to stop having or using something and let it stay behind. It often has a sense of abandonment.
He left his old life behind.
They leave trouble for others to solve.
Leave here means to cause something to remain after an action happens. It is about leaving a result or residue.
The fire left cold ashes behind.
The storm left many trees down.