# thorough

> English word · Adjective · IPA /ˈθʌɹə/ · frequency rank #7,512

## Definitions
1. Painstaking and careful not to miss or omit any detail.
2. Utter; complete; absolute.

## Etymology
From Middle English thoruȝ, þoruȝ, from Old English þuruh, a byform of Old English þurh, whence comes English through. The adjective derives from the preposition and adverb. The word developed a syllabic form in cases where the word was fully stressed: when it was used as an adverb, adjective, or noun, and less commonly when used as a preposition.

## Easily confused with
- **though** (https://plainspell.com/en/vs/thorough-vs-though)
- **trough** (https://plainspell.com/en/vs/thorough-vs-trough)
- **through** (https://plainspell.com/en/vs/thorough-vs-through)
- **thoroughly** (https://plainspell.com/en/vs/thorough-vs-thoroughly)

## Common misspellings (12)
`htorough`, `thhorough`, `thoorugh`, `thoroguh`, `thorouggh`, `thoroughh`, `thorouhg`, `thorrough`, `thoruogh`, `throough`, `tohrough`, `tthorough`

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