investigate
verb (used with object)
to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
have investigated
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present perfectof investigate.present perfect
Used to describe actions that started in the past and continue into or have direct relevance to the present.
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.
The breakthrough relies on an unusual property of thorium atomic nuclei that scientists have investigated for decades.
From Science Daily ● Oct. 11, 2026
The information in the report is, rather, “only a selection of cases we have investigated as a deterrent for state agencies and state employees so they can avoid similar improper governmental activities,” the audit said.
From Los Angeles Times ● Oct. 8, 2026
For several years, the teams led by Zeng and Cheng have investigated how these vacuum fluctuations affect condensed matter systems.
From Science Daily ● Oct. 3, 2026
The Coast Guard and FBI declined to say how many cyberattack cases they have investigated since the war with Iran began.
From The Wall Street Journal ● Sep. 16, 2026
If this had happened in Flint I would have investigated to find out what it was, but that horrible sun had sucked all the curiosity out of me.
From "The Watsons Go to Birmingham" by Christopher Paul Curtis
