As a noun, rend means a tear or rip, especially a large or strong one. It refers to the result of tearing.
There was a large rend in the fabric.
The rend made the book cover weak.
Rend can mean to cause strong sadness or pain inside someone. This meaning talks about feelings, not physical tearing.
His heart was rend by the bad news.
War rend the nation in grief.
Rend also means to break or cut apart materials like clothes or sails with great force. It is often used in physical contexts.
They rend the cloth to make bandages.
The storm rend the sails of the ship.
In old or poetic use, rend means to break the silence with a loud sound or cry. It is less common today.
The thunder rend the silent night.
His shout rend the quiet air.
Rend can be used in science to mean splitting or breaking apart tissues or layers of earth. It often involves strong force.
The injury rend the muscle deeply.
An earthquake can rend the earth’s crust.
