From WordNet (r) 3.0 (2006) [wn]:
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, indicate,
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: indicate, point,
designate, 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,
indicate]
5: suggest the necessity of an intervention; in medicine;
"Tetracycline is indicated in such cases" [syn: indicate,
suggest] [ant: contraindicate]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
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.]
[1913 Webster]
1. To point out; to discover; to direct to a knowledge of; to
show; to make known.
[1913 Webster]
That turns and turns to indicate
From what point blows the weather. --Cowper.
[1913 Webster]
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. Opposite of
contraindicate.
[1913 Webster +PJC]
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.
[1913 Webster]