indication-n; 3 Senses

Sense Number 1: Something that serves to suggest a certain fact.

Commentary: INDICATION[+sign]

Examples:
There were indications of strain.
He could not believe the indications from the meter.
There were indications that it was time to leave.

Mappings:
WordNet 3.0 Sense Numbers: 1, 4, 5

Sense Number 2: The act of indicating or pointing out by name.

Commentary: INDICATION[+event]

Examples:
She made indications as if to leave.
He made several indications of his intentions.

Mappings:
WordNet 3.0 Sense Numbers: 2

Sense Number 3: (medicine) a reason to prescribe a drug or perform a procedure.

Commentary: INDICATION[+medicine]

Examples:
The infection was an indication for antibiotics.
The blockage was an indication for surgery.

Mappings:
WordNet 3.0 Sense Numbers: 3