investigate

[in-ves-ti-geyt] / ɪnˈvɛs tɪˌgeɪt /

VERB

check into thoroughly

Synonyms

STRONGEST

consider examine explore inspect interrogate probe question review scrutinize search study

STRONG

bug case delve dig eyeball frisk inquire muckrake poke prospect pry read reconnoiter research scout sift spy tap wiretap

WEAK

be all ears check out check over check up feel out give the once-over go into inquisite listen in look into look over make inquiry nose around put to the test run down stake out

Antonyms

STRONGEST

answer forget ignore neglect reply

STRONG

leave alone overlook

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.

To investigate the atmosphere of TOI-199b, researchers used a method called transmission spectroscopy.

From Science Daily • May 22, 2026

Dogra also said Channel 4 can't investigate the women's allegations, which the men have denied, adding: "We are a broadcaster, not an adjudicator."

From BBC • May 22, 2026

The company struck an agreement with the Air Force a few years ago to investigate the concept for the military.

From The Wall Street Journal • May 21, 2026

Justice Department, asking authorities to investigate alleged animal abuse on Skid Row.

From Los Angeles Times • May 21, 2026

“We really did write to the paper,” said Brad, “and the superintendent really did investigate mice at our school, sort of.”

From "Ralph S. Mouse" by Beverly Cleary

Vocabulary lists containing investigate

Jim Burke's Academic Vocabulary List

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List 8

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Word Generation Science - Preparing a Scientific Investigation

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