Definitions

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 further, researchers focused on glucosamine because it is a naturally occurring sugar-related molecule that can cross the blood-brain barrier.

From Science Daily • Jun. 10, 2026

WGT trustee Stuart Pickles said: "Until now we had no water quality data. Now we have the evidence, we are calling for the Environment Agency to investigate."

From BBC • Jun. 10, 2026

It is far wiser to investigate now than to spend the next century composing another apology.

From The Wall Street Journal • Jun. 10, 2026

It cost $160 for them to investigate the issue, and they said the cost of the repair would be deducted from that fee.

From MarketWatch • Jun. 10, 2026

“Miss K, how are they going to investigate the school for mice?”

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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