verb
(transitive, sometimes with 'of') To point out; to discover; to direct to a knowledge of; to show; to make known.
(transitive, medicine) To show or manifest by symptoms.
(transitive, medicine) To point to as the proper remedies.
(transitive) To signal in a vehicle the desire to turn right or left.
(transitive) To investigate the condition or power of, as of steam engine, by means of an indicator.