in·ves·ti·gate

[in-ves-ti-geyt] verb, in·ves·ti·gat·ed, in·ves·ti·gat·ing.
verb (used with object)
1.
to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
2.
to search out and examine the particulars of in an attempt to learn the facts about something hidden, unique, or complex, especially in an attempt to find a motive, cause, or culprit: The police are investigating the murder.
verb (used without object)
3.
to make inquiry, examination, or investigation.

Origin:
1500–10; < Latin investīgātus, past participle of investīgāre to follow a trail, search out. See in-2, vestige, -ate1

in·ves·ti·ga·tive, in·ves·ti·ga·to·ry [in-ves-ti-guh-tawr-ee, -tohr-ee] , adjective
in·ves·ti·ga·tor, noun
pre·in·ves·ti·gate, verb, pre·in·ves·ti·gat·ed, pre·in·ves·ti·gat·ing.
pre·in·ves·ti·ga·tor, noun
qua·si-in·ves·ti·gat·ed, adjective
re·in·ves·ti·gate, verb, re·in·ves·ti·gat·ed, re·in·ves·ti·gat·ing.
un·in·ves·ti·gat·ed, adjective
un·in·ves·ti·gat·ing, adjective
un·in·ves·ti·ga·tive, adjective
un·in·ves·ti·ga·to·ry, adjective
well-in·ves·ti·gat·ed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To investigate
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Investigate is one of our favorite verbs.
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chat, to converse
to steal or take dishonestly (money, esp. public funds, or property entrusted to one's care); embezzle.
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World English Dictionary
investigate (ɪnˈvɛstɪˌɡeɪt) [Click for IPA pronunciation guide]
 
vb
to inquire into (a situation or problem, esp a crime or death) thoroughly; examine systematically, esp in order to discover the truth
 
[C16: from Latin investīgāre to search after, from in-² + vestīgium track; see vestige]
 
in'vestigable
 
adj
 
in'vestigative
 
adj
 
in'vestigatory
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
Yet the police made little attempt to investigate him.
The league didn't know the extent to which concussions were harmful, but only
  because it didn't bother to properly investigate.
And you can investigate a language by studying what goes on in the brain as
  people learn or use language.
Reports of fraud led the government to investigate and close a handful of
  colleges, which left hundreds of students in limbo.
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