investigation

Meanings

1. 1
   noun

   The act of investigating; the process of inquiring into or following up; research, especially patient or thorough inquiry or examination

   The investigation into the crime has led to various leads as well as plenty of dead ends.

2. 2
   noun

   the work of inquiring into something thoroughly and systematically

3. 3
   noun

   an inquiry into unfamiliar or questionable activities

Etymology

From Middle English investigacioun, from Old French investigacion, from Latin investigatio. Morphologically investigate + -ion.