blauvsboahWhich spelling fits?

Quick tell: blau is a adjective, boah is an intj, so they fill different roles in a sentence.

Which to use

“blau” is an adjective and “boah” is an intj - they look or sound alike but fill different roles in a sentence.

#1,871
“blau” frequency rank
#10,436
“boah” frequency rank
12307
confusion score

Side-by-Side Comparison

Feature blau boah
Definition eine bunte Farbe, im Spektrum eine relativ kurzwellige Farbe zwischen grün und violett; Grundfarbe vieler Farbmodelle, insbesondere eine der drei Grundfarben des digitalen RGB-Farbraums Ausruf des Erstaunens, der Überraschung oder des Genervtseins

Where the eye mixes blau and boah

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. blau (CCVV) and boah (CVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
blau
4 ch
boah

Look-alike desk: blau vs boah

These two trip readers on the page rather than in the ear: blau is [blaʊ̯] while boah is [bɔːɐ̯]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs intj), which is usually the fastest check. Our composite confusion score for this pair is 12307, derived from the frequency rank of both members and their visual similarity.

blau is recorded at frequency rank #1,871, classified as anadj, pronounced [blaʊ̯]. boah is at rank #10,436, tagged as anintj, pronounced [bɔːɐ̯].

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 12307, this pair ranks #1,964,954 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of blau vs boah

Shared letters: ab. Private to "blau": lu. Private to "boah": ho.

"blau" · 4 letters · shape CCVV  ·  "boah" · 4 letters · shape CVVC

Known mistypes of this pair

  • blau ← balu · bblau · bllau · blua · lbau
  • boah ← baoh · bboah · boahh · boha · obah

Frequently Asked Questions

Can "blau" and "boah" be used interchangeably?
No - they are not even the same part of speech. "blau" is an adjective and "boah" an intj, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "blau" or "boah" show up more?
"blau" is the more common of the two: it sits at frequency rank #1,871 in our German list, against #10,436 for "boah". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "blau" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "boah" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,964,954 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "blau" and "boah" also get mixed up with nearby pairs, the highest-scored neighbour is "boah vs boos". 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 #1,964,954 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