horizonvsopenWhich spelling fits?

Quick tell: horizon is a noun, open is an adjective, so they fill different roles in a sentence.

Which to use

“horizon” is a noun and “open” is an adjective - they look or sound alike but fill different roles in a sentence.

#23,180
“horizon” frequency rank
#2,607
“open” frequency rank
25787
confusion score

Side-by-Side Comparison

Feature horizon open
Definition Horizont etwas ist nicht geschlossen

Letter map: horizon vs open

Shared letters muted; letters that set horizon and open apart highlighted. Shared run: 2.

7 ch
horizon
4 ch
open

Grammar separator: horizon vs open

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: horizon is anoun and openanadjective. On the page they differ by 3 letter(s) in length. Our composite confusion score for this pair is 25787, derived from the frequency rank of both members and their visual similarity.

horizon is recorded at frequency rank #23,180, classified as anoun, pronounced […]. open is at rank #2,607, tagged as anadj, pronounced […].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 25787, this pair ranks #1,827,968 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of horizon vs open

Shared letters: no. Private to "horizon": hirz. Private to "open": ep.

"horizon" · 7 letters · shape CVCVCVC  ·  "open" · 4 letters · shape VCVC

Known mistypes of this pair

  • horizonhhorizon · hoirzon · horiozn · horizno · horizonn · horizzon · horrizon · horzion
  • openoepn · openn · opne · oppen · poen

Frequently Asked Questions

Can "horizon" and "open" be used interchangeably?
No - they are not even the same part of speech. "horizon" is a noun and "open" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "horizon" vs "open" - which ranks higher?
"open" is the more common of the two: it sits at frequency rank #2,607 in our German list, against #23,180 for "horizon". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "horizon" and "open". Here's where to go from here.

  • Full dictionary entry for "horizon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "open" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,827,968 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "horizon" and "open" also get mixed up with nearby pairs, the highest-scored neighbour is "horizon vs puzzles". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #1,827,968 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list