A down payment is the amount of money that you put towards the purchase of a property and is then deducted from the final purchase price. The minimum amount you'll need for your down payment depends on the purchase price of the home you'd like to buy. Typically, buyers make a downpayment amount between 5% and 20%.
This video also explains what a downpayment is:
This vide will advise you on how much you may need as a downpayment: