pointer

1. One who points.
2. A teacher's pointer, pointing stick, a rod with an arrow.
3. A needlelike component of a timepiece or measuring device that indicates the time or the current reading of the device.
4. Any of several breeds of hunting dog, trained to point out game; an individual of such a breed.
5. A variable that holds the address of a memory location where a value can be stored.
6. An icon that indicates the position of the pointing device, such as a mouse.
7. A tip, a bit of advice. · The instructor gave me some pointers on writing a good paper.
8. Something that gives a point (sharp end) to something. · pencil pointer

Plural pointers