openvszeroConfusable pair

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

Which to use

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

#2,607
“open” frequency rank
#9,487
“zero” frequency rank
12094
confusion score

Side-by-Side Comparison

Feature open zero
Definition etwas ist nicht geschlossen Null

Letter map: open vs zero

Shared letters muted; letters that set open and zero apart highlighted. Shared run: 1. open (VCVC) and zero (CVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
open
4 ch
zero

Part-of-speech tell for open / zero

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: open is anadjective and zeroanoun. On the page they share most of their letters but differ in 4 positions. Our composite confusion score for this pair is 12094, derived from the frequency rank of both members and their visual similarity.

open is recorded at frequency rank #2,607, classified as anadj, pronounced […]. zero is at rank #9,487, tagged as anoun, 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 12094, this pair ranks #1,966,209 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of open vs zero

Shared letters: eo. Private to "open": np. Private to "zero": rz.

"open" · 4 letters · shape VCVC  ·  "zero" · 4 letters · shape CVCV

Known mistypes of this pair

  • open ← oepn · openn · opne · oppen · poen
  • zero ← ezro · zeor · zerro · zreo · zzero

Frequently Asked Questions

Do "open" and "zero" mean the same thing in a sentence?
No - they are not even the same part of speech. "open" is an adjective and "zero" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "open" or "zero"?
"open" is the more common of the two: it sits at frequency rank #2,607 in our German list, against #9,487 for "zero". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "open" and "zero".

  • Full dictionary entry for "open" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "zero" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,966,209 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "open" and "zero" also get mixed up with nearby pairs, the highest-scored neighbour is "puzzles vs zero". 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 #1,966,209 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