# horizontal

> English word · Adjective · IPA /ˌhɒɹɪˈzɒntəl/ · frequency rank #8,299

## Definitions
1. Perpendicular to the vertical; parallel to the plane of the horizon; level, flat.
2. Relating to horizontal markets
3. Pertaining to the horizon.
4. Involving wines of the same vintages but from different wineries.
5. Having the two notes sound successively.
6. Relating to sexual intercourse.
7. Being or relating to the transmission of organisms between biotic and/or abiotic members of an ecosystem that are not in a parent-progeny relationship.

## Etymology
Borrowed from Middle French horizontal, from horizon, horizonte, from Latin horizōn (stem horizont-).

## Easily confused with
- **horizontally** (https://plainspell.com/en/vs/horizontal-vs-horizontally)

## Common misspellings (15)
`hhorizontal`, `hoirzontal`, `horiozntal`, `horiznotal`, `horizonatl`, `horizonntal`, `horizontall`, `horizontla`, `horizonttal`, `horizotnal`, `horizzontal`, `horrizontal`, `horziontal`, `hroizontal`, `ohrizontal`

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