Dictionary.com
Thesaurus.com
Synonyms

investigate

American  
[in-ves-ti-geyt] / ɪnˈvɛs tɪˌgeɪt /

verb (used with object)

investigated, investigating
  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)

investigated, investigating
  1. to make inquiry, examination, or investigation.

investigate British  
/ ɪnˈvɛstɪˌɡeɪt /

verb

  1. to inquire into (a situation or problem, esp a crime or death) thoroughly; examine systematically, esp in order to discover the truth

"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

Other Word Forms

Etymology

Origin of investigate

First recorded in 1500–10; from Latin investīgātus, past participle of investīgāre “to follow a trail, search out”; see in- 2, vestige, -ate 1

Explanation

To investigate is to look into something systematically. If you don't understand how tornadoes work, for example, investigate the forces of wind and find out. Investigate still acts a lot like the word it comes from, investigationem meaning "a searching into," which came from the Latin for "to track a footprint." It's exactly what you do when you investigate. You can investigate in the name of science, which is to look into something systematically, like when you research how tornadoes work. If you investigate a person, you find out everything you can — and you might need to hire a private eye for help.

Keep Reading on Vocabulary.com

Vocabulary lists containing investigate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“Unfortunately, it’s pretty widespread. We don’t have a specific area where they’re occurring,” Carlos Heraud, the assistant chief of Investigate Service Bureaus, told The Washington Times.

From Washington Times • Oct. 4, 2023

There have now been nine televised hearings of the House Select Committee to Investigate the January 6th Attack on the United States Capitol.

From Salon • Aug. 10, 2022

Former Vice President Mike Pence is displayed on a screen during a hearing of the Select Committee to Investigate the January 6th Attack on the US Capitol in Washington, D.C.,

From Reuters • Jun. 16, 2022

Investigate before giving directly to online campaigns for individuals.

From Washington Post • Dec. 14, 2021

Investigate this matter so that it may become to you evident and manifest.

From Bahá’í World Faith by `Abdu'l-Bahá

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "investigate" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com