The meaning of INVESTIGATION is the action or process of investigating : detailed examination : study, research. How to use investigation in a sentence.

What does investigation mean? An investigation is a thorough search for facts, especially those that are hidden or need to be sorted out in a complex situation. The goal of an investigation is usually to …

INVESTIGATION definition: 1. the act or process of examining a crime, problem, statement, etc. carefully, especially to…. Learn more.

Definition of investigation noun from the Oxford Advanced Learner's Dictionary. an official examination of the facts about a situation, crime, etc. The president has promised a full investigation. The authorities …

1. The act or process of investigating: a politician under investigation. 2. A careful examination or search in order to discover facts or gain information. See Synonyms at inquiry.

An investigation is a systematic, minute, and thorough attempt to learn the facts about something complex or hidden; it is often formal and official: an investigation of a bank failure.

Look up investigation or investigate in Wiktionary, the free dictionary.

Nov 10, 2025 · investigation (countable and uncountable, plural investigations) The act of investigating; the process of inquiring into or following up; research, especially patient or thorough inquiry or …

Apr 4, 2025 · An investigation is a systematic process used to gather information, facts, and evidence in order to examine and evaluate a particular subject, issue, or event.

An investigation is a crucial aspect of the legal process. When a plaintiff or district attorney wants to bring a claim, whether it is civil or criminal, an investigation must occur so that relevant facts can be …