# investigation

> English word · Noun · IPA /ɪnˌvɛs.tɪˈɡeɪ.ʃən/ · frequency rank #1,831

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

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

## Easily confused with
- **investigator** (https://plainspell.com/en/vs/investigation-vs-investigator)
- **investigative** (https://plainspell.com/en/vs/investigation-vs-investigative)
- **instigation** (https://plainspell.com/en/vs/instigation-vs-investigation)

## Common misspellings (20)
`inevstigation`, `innvestigation`, `invesitgation`, `invesstigation`, `investgiation`, `investiagtion`, `investigaiton`, `investigasion`, `investigatino`, `investigationn`, `investigatoin`, `investigattion`, `investiggation`, `investigtaion`, `investtigation`, `invetsigation`, `invsetigation`, `invvestigation`, `ivnestigation`, `nivestigation`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/investigation