to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
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.
to make inquiry, examination, or investigation.
- in·ves·ti·ga·tive, in·ves·ti·ga·to·ry [in-ves-ti-guh-tawr-ee, -tohr-ee], /ɪnˈvɛs tɪ gəˌtɔr i, -ˌtoʊr i/, 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 Unabridged Dictionary, © Random House, Inc. 2023
How to use investigate in a sentence
A grand jury investigated but found Foster had broken no law.
Retired Det. Tom Nerney, formerly of the NYPD Major Case Squad, investigated Shakur.
Some were already investigated, had become fugitives, and left the country illegally.
When Jackson found out about this campaign against him a year later, he made a formal request that every charge be investigated.
Los Angeles attorney Donald Steier claims that half of all accusations prove false once investigated.
The royal Audiencia has investigated this matter, on petition of the cabildo, in order to refer it to that royal council.
Benny and Violet scrambled through the underbrush to the place Jess pointed out, and investigated.The Box-Car Children | Gertrude Chandler Warner
Either he continued to follow Carlson or he investigated the milk box which Carlson had mysteriously visited.
In addition to the points referred to in the tables, other questions have been investigated, although on a smaller scale.A Statistical Inquiry Into the Nature and Treatment of Epilepsy | Alexander Hughes Bennett
White with anger and chagrin, the doctor stood roundly abusing the man who had investigated that lonely house.The Doctor of Pimlico | William Le Queux
British Dictionary definitions for investigate
to inquire into (a situation or problem, esp a crime or death) thoroughly; examine systematically, esp in order to discover the truth
- investigable, adjective
- investigative or investigatory, 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