What does "deposit" mean?

Additional senses

1. 2.To lodge in some one's hands for sale keeping; to commit to the custody of another; to intrust; esp., to place in a bank, as a sum of money subject to order.
2. 3.To lay aside; to rid one's self of. [Obs.] If what is written prove useful to you, to the depositing that which i can not deem an error. Hammond. Note: Both this verb and the noun following written deposite.
3. 4.That is deposited, or laid or thrown down; as, a deposit in a flue; especially, matter precipitated from a solution (as the siliceous deposits of hot springs), or that which is mechanically deposited (as the mud, gravel, etc., deposits of a river). The deposit already formed affording to the succeeding portion of the charged fluid a basis. Kirwan.
4. 5.(Mining) A natural occurrence of a useful mineral under the conditions to invite exploitation. Raymond.
5. 6.That which is placed anywhere, or in any one's hands, for safe keeping; somthing intrusted to the care of another; esp., money lodged with a bank or banker, subject to order; anything given as pledge or security.
6. 7.(Law) (a) A bailment of money or goods to be kept gratuitously for the bailor. (b) Money lodged with a party as earnest or security for the performance of a duty assumed by the person depositing.
7. 8.A place of deposit; a depository. [R.] Bank of deposit. See under Bank. -- In deposit, or On deposit, in trust or safe keeping as a deposit; as, coins were recieved on deposit.