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investigation

[in-ves-ti-gey-shuhn]
noun
  1. the act or process of investigating or the condition of being investigated.
  2. a searching inquiry for ascertaining facts; detailed or careful examination.
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Origin of investigation

1400–50; late Middle English investigacio(u)n < Latin investīgātiōn- (stem of investīgātiō). See investigate, -ion
Related formsin·ves·ti·ga·tion·al, adjectivepre·in·ves·ti·ga·tion, nounre·in·ves·ti·ga·tion, noun

Synonyms

1, 2. scrutiny, exploration. Investigation, examination, inquiry, research express the idea of an active effort to find out something. An investigation is a systematic, minute, and thorough attempt to learn the facts about something complex or hidden; it is often formal and official: an investigation of a bank failure. An examination is an orderly attempt to obtain information about or to make a test of something, often something presented for observation: a physical examination. An inquiry is an investigation made by asking questions rather than by inspection, or by study of available evidence: an inquiry into a proposed bond issue. Research is careful and sustained investigation.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for pre-investigation

investigation

noun
  1. the act or process of investigating; a careful search or examination in order to discover facts, etc
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Derived Formsinvestigational, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for pre-investigation

investigation

n.

early 15c., from Old French investigacion (14c.), from Latin investigationem (nominative investigatio) "a searching into, a searching for," noun of action from past participle stem of investigare "to trace out, search after," from in- "in, into" (see in- (2)) + vestigare "to track, trace," from vestigium "footprint, track" (see vestige).

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Online Etymology Dictionary, © 2010 Douglas Harper