blasvsboosTell them apart

Quick tell: blas is a verb, boos is a noun, so they fill different roles in a sentence.

Which to use

“blas” is a verb and “boos” is a noun - they look or sound alike but fill different roles in a sentence.

#32,964
“blas” frequency rank
#48,019
“boos” frequency rank
80983
confusion score

Side-by-Side Comparison

Feature blas boos
Definition 2. Person Singular Imperativ Präsens Aktiv des Verbs blasen Plural des Substantivs boo

Letter map: blas vs boos

Shared letters muted; letters that set blas and boos apart highlighted. Shared run: 2. blas (CCVC) and boos (CVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
blas
4 ch
boos

Part-of-speech tell for blas / boos

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: blas is averb and boosanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 80983, derived from the frequency rank of both members and their visual similarity.

blas is recorded at frequency rank #32,964, classified as averb, pronounced [blaːs]. boos is at rank #48,019, 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 80983, this pair ranks #184,690 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of blas vs boos

Shared letters: bs. Private to "blas": al. Private to "boos": o.

"blas" · 4 letters · shape CCVC  ·  "boos" · 4 letters · shape CVVC

Known mistypes of this pair

  • blas ← bblas · bllas · blsa · lbas
  • boos ← bboos · booss · boso · obos

Frequently Asked Questions

Can "blas" and "boos" be used interchangeably?
No - they are not even the same part of speech. "blas" is a verb and "boos" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "blas" vs "boos" - which ranks higher?
"blas" is the more common of the two: it sits at frequency rank #32,964 in our German list, against #48,019 for "boos". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "blas" and "boos".

  • Full dictionary entry for "blas" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "boos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #184,690 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "blas" and "boos" also get mixed up with nearby pairs, the highest-scored neighbour is "boos 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 #184,690 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