Indicate

verb

1. To point out; to discover; to direct to a knowledge of; to show; to make known.

   "The guard blew his whistle to indicate imminent departure."

2. To show or manifest by symptoms; to point to as the proper remedies.

   "Great prostration of strength indicates the use of stimulants."

3. To signal in a vehicle the desire to turn right or left.
4. To investigate the condition or power of, as of steam engine, by means of an indicator.