Left describes a direction. It is used to tell someone where to go or where something is.
Turn left at the corner.
The cat is on the left.
Left can mean to abandon or to not take something with you. It describes leaving something behind.
She left her bag at home.
He left the door open.
Left can refer to what remains after other items are taken away. It can describe quantity left over.
We only have two left.
There is one piece left.
Left can mean to give freedom or authority to someone. It involves not interfering with their actions.
She left me to decide.
He left them in charge.
Left is used to indicate that someone has departed. It is often used in past or perfect tenses.
He has left for the day.
They had already left.
