to point to or point out (something or somebody)
to be a sign or symptom of (something)
to state or express (something) briefly or indirectly
to show or register (a value) with or as if with a pointer
to demonstrate or suggest the necessity or advisability of (a course of action)
said of a vehicle or its driver: to show an intention to change direction by flashing an indicator
indication noun
[Latin indicatus, past part. of indicare, from in-2 + dicare to proclaim, dedicate]