Which to use
“observation” is a noun and “open” is an adjective - they look or sound alike but fill different roles in a sentence.
- #49,936
- “observation” frequency rank
- #2,607
- “open” frequency rank
- 52543
- confusion score
Side-by-Side Comparison
| Feature | observation | open |
|---|---|---|
| Definition | Beobachtung, Observation, Überwachung | etwas ist nicht geschlossen |
Letter map: observation vs open
Shared letters muted; letters that set observation and open apart highlighted. Shared run: 3.
Part-of-speech tell for observation / open
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: observation is anoun and openanadjective. On the page they differ by 7 letter(s) in length. Our composite confusion score for this pair is 52543, derived from the frequency rank of both members and their visual similarity.
observation is recorded at frequency rank #49,936, 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 52543, this pair ranks #1,092,649 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of observation vs open
Shared letters: eno. Private to "observation": abirstv. Private to "open": p.
"observation" · 11 letters · shape VCCVCCVCVVC · "open" · 4 letters · shape VCVC
Known mistypes of this pair
- observation ← boservation · obbservation · obesrvation · obseravtion · obserrvation · observaiton · observatino · observationn
- open ← oepn · openn · opne · oppen · poen
Frequently Asked Questions
Is swapping "observation" for "open" ever safe?
Which is more common, "observation" or "open"?
After this comparison
Pair "observation" vs "open" is on the table, pick a follow-up below.
- Full dictionary entry for "observation" 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 #1,092,649 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "observation" and "open" also get mixed up with nearby pairs, the highest-scored neighbour is "observation 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 #1,092,649 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.