security deposit
nounUK /sɪˈkjʊərəti dɪˈpɒzɪt/
US /sɪˈkjʊrəti dɪˈpɑːzɪt/
Money you give to someone to hold so they know you will take good care of what you borrow or rent.
We paid a security deposit before moving into the apartment.
OTHER MEANINGS
2. A sum paid in advance to guarantee that a contract will be fulfilled.
The company required a security deposit before signing the contract.
3. Money held by a landlord that may be returned if the property is left undamaged.
She got her security deposit back after the inspection.
4. A payment made to cover possible future damage or loss.
The rental shop asked for a security deposit on the camera.