Drop

1. A small mass of liquid just large enough to hold its own weight via surface tension, usually one that falls from a source of liquid. One drop of blood and I knew I was hurt.
2. A fall, descent; an act of dropping. He dropped the glass on the floor.
3. A place where items or supplies may be left for others to collect, sometimes associated with criminal activities. I left them at the drop, as you asked.
4. An instance of dropping supplies or making a delivery, sometimes associated with delivery of supplies by parachute. In Korea the Air Force planned a food drop for us.
5. A small amount of an alcohol beverage. He enjoys a drop after work.
6. (American football) A dropped pass. Yet another drop by the tight end.