in|ves|ti|ga|tion

in|ves|ti|ga|tion «ihn _VEHS tuh GAY shuhn», noun.

a careful search; detailed or careful examination.

Synonym Study Investigation, examination, inquiry mean a search for information or truth. Investigation emphasizes a careful and systematic search for facts, especially one carried out by officials: »

An investigation of the accident by the police put the blame on the drivers of both cars.

Examination emphasizes a search for facts by inspection: »

The doctor gave her a physical examination.

Inquiry especially suggests a search for facts made by asking questions: »

Advertisers began an inquiry into the buying habits of consumers.