What is the meaning of Pointer?

Anything that points or is used for pointing.

One who points.

A teacher's pointer, pointing stick, a rod with an arrow.

A needle-like component of a timepiece or measuring device that indicates the time or the current reading of the device.

A breed of hunting dog, trained to point out game.

A variable that holds the address of a memory location where a value can be stored.

An icon that indicates the position of the pointing device, such as a mouse.

A tip, a bit of advice.

Something that gives a point (sharp end) to something.

Something worth a given number of points.

pointer

to point to/at

to indicate, to show, to point out

to clock in , clock on , to punch in ; to clock out , clock off , to punch out (to enter or leave a workplace by punching a time card)

to show up, turn up

pointer (dog)

pointer (breed of hunting dog)

pointer

pointer (dog breed)

Source: wiktionary.org