1. a sum of money placed in a bank account
2. a sum of money given as a first payment or security
3. a layer of a substance that has accumulated naturally

1. to put money into a bank account
2. to put something down in a particular place

Examples

• She made a deposit of $500 into her savings account.
• The landlord required a security deposit before we could move in.
• Geologists discovered a large deposit of copper in the mountain.
• I need to deposit this check before the bank closes.
• The river deposited sand and silt along its banks.
• Please deposit your bags at the front desk.
• The oil deposit was found deep underground.