The meaning of investigate is to observe or study by close examination and systematic inquiry. How to use investigate in a sentence. See examples of investigate used in a sentence.
Nov 5, 2025explore the term investigate with a comprehensive glossary entry covering its full definition, historical etymology, common word forms, and practical examples of use. As, to investigate the forces of nature; To investigate the causes of natural phenomena;
Jan 25, 2026investigate (third-person singular simple present investigates, present participle investigating, simple past and past participle investigated) (transitive) to inquire into or study in order. 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.
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