1 place, leave, set or put or lay (down), drop, Colloq US plunk down:
You are requested to deposit litter in the bin.
2 entrust, leave, lodge, consign, keep, place, put; store, save, set aside, bank, lay or put away, Brit pay in, Colloq stash away:
Each morning she deposits the children at the day nursery and goes to work. He deposits money every week in a pension fund.
3 down payment, part or partial payment, advance payment:
A small deposit will hold your purchase until you are ready to pay for it in full.
4 precipitate, sediment, silt, alluvium, dregs, lees, accumulation, deposition:
There is a dark deposit at the bottom of the coffee-pot.