What is the meaning of Indicator?

A pointer or index that indicates something.

A meter or gauge.

The needle or dial on such a meter.

Any of many substances, such as litmus, used to indicate the concentration of a substance, or the degree of a reaction.

A plant or animal whose presence is indicative of some specific environment.

A measure, such as unemployment rate, which can be used to predict economic trends.

A turn signal; each of the flashing lights on each side of a vehicle which indicate a turn is being made to left or right, or a lane change etc.

A bird, the honeyguide.

indicator

Someone who points out.

second/third-person singular future passive imperative of indicō

indicator (pointer, index, substance)

traffic sign

honeyguide

Source: wiktionary.org