indication in WordNet English dictionary

1. the act of indicating or pointing out by name
   indication  denotation 
   
2. something that serves to indicate or suggest
   "an indication of foul play"; "indications of strain"; "symptoms are the prime indicants of disease"
   indication  indicant 
   
3. a datum about some physical state that is presented to a user by a meter or similar instrument
   "he could not believe the meter reading"; "the barometer gave clear indications of an approaching storm"
   reading  meter reading  indication 
   
4. (medicine) a reason to prescribe a drug or perform a procedure
   "the presence of bacterial infection was an indication for the use of antibiotics"
   indication 
   
5. something (as a course of action) that is indicated as expedient or necessary
   "there were indications that it was time to leave"
   indication