A leaf is the green part of a plant or tree. It is usually flat and thin. Leaves help the plant by making food from sunlight.
The tree has many green leaves.
She picked a leaf from the garden.
In books, a leaf means one sheet of paper or two pages together. It is a part you can turn when reading.
Turn the leaf to read the next page.
This book has thick leaves of paper.
A leaf is one part of a door or window that can open or close. Doors can have one or more leaves.
The door has two leaves that open wide.
Each leaf of the window moves separately.
To leaf means to turn pages quickly to find or look at something. It is often used when looking through books or papers.
She leafed through the magazine fast.
He leafed the book to find the chapter.
Leaf can mean a very thin layer, often metal like gold or silver. Sometimes it is used to describe thin layers of other materials.
There was a leaf of gold on the statue.
The roof had a leaf of metal for protection.
To 'turn over a new leaf' means to start a new, better way of living or behavior. It is an expression used when someone wants to change.
He decided to turn over a new leaf this year.
She wants to turn over a new leaf and be kind.
A leaf spring is a type of spring made of flat strips of steel. It is used in vehicle suspensions to absorb shocks.
The car’s leaf springs improve the ride.
Leaf springs are used in heavy vehicles.