Source : Webster's Revised Unabridged Dictionary (1913)

Indicate \In"di*cate\, v. t. [imp. & p. p. {Indicated}; p. pr. &
   vb. n. {Indicating}.] [L. indicatus, p. p. of indicare to
   indicate; pref. in- in + dicare to proclaim; akin to dicere
   to say. See {Diction}, and cf. {Indict}, {Indite}.]
   1. To point out; to discover; to direct to a knowledge of; to
      show; to make known.

            That turns and turns to indicate From what point
            blows the weather.                    --Cowper.

   2. (Med.) To show or manifest by symptoms; to point to as the
      proper remedies; as, great prostration of strength
      indicates the use of stimulants.

   3. (Mach.) To investigate the condition or power of, as of
      steam engine, by means of an indicator.

   Syn: To show; mark; signify; denote; discover; evidence;
        evince; manifest; declare; specify; explain; exhibit;
        present; reveal; disclose; display.

Source : WordNet®

indicate
     v 1: be a signal for or a symptom of; "These symptoms indicate a
          serious illness"; "Her behavior points to a severe
          neurosis"; "The economic indicators signal that the euro
          is undervalued" [syn: {bespeak}, {betoken}, {point}, {signal}]
     2: indicate a place, direction, person, or thing; either
        spatially or figuratively; "I showed the customer the
        glove section"; "He pointed to the empty parking space";
        "he indicated his opponents" [syn: {point}, {show}]
     3: to state or express briefly; "indicated his wishes in a
        letter" [ant: {contraindicate}]
     4: give evidence of; "The evidence argues for your claim"; "The
        results indicate the need for more work" [syn: {argue}]
     5: suggest the necessity of an intervention; in medicine;
        "Tetracycline is indicated in such cases" [syn: {suggest}]
        [ant: {contraindicate}]