put a deposit down

Explanation seems open to me which part you didn't understand?

User_garyput sth down (PAY) phrasal verb [M]
to pay part of the cost and promise to pay the rest later:
I've put a deposit down on a new car.


Please explain this sentence, particularly "put a deposit down". = pay (put a deposit down, put down a deposit, pay a deposit: all are possible) You

Thank you Doll and Phillip.

put sth down (PAY) phrasal verb [M]
to pay part of the cost and promise to pay the rest later:
I've put a deposit down on a new car.


Here is my doubts :

The yellow part says "to pay part of the cost and promise to pay the rest later". But, then, in the example, "I have paid a deposit for a

Gary,

If you put a deposit down on something, you give half or some of the money then you pay the other amount later. For example you bought a car from me. It costs 250 $ . You put 125$ as a deposit down on it and I want you to pay the other 125 $ a year later. My aim to take the half or some of the oney from you is that if you have an accident whit my car or if you use it bad

Yes, in this context a deposit is a part payment.