baivsBfSWhich spelling fits?

Quick tell: bai is a adjective, BfS is an abbrev, so they fill different roles in a sentence.

Which to use

“bai” is an adjective and “BfS” is an abbrev - they look or sound alike but fill different roles in a sentence.

#36,213
“bai” frequency rank
#48,780
“BfS” frequency rank
84993
confusion score

Side-by-Side Comparison

Feature bai BfS
Definition von bräunlich roter Fellfarbe; rotbraun, braun Bundesamt für Strahlenschutz

Letter map: bai vs BfS

Shared letters muted; letters that set bai and BfS apart highlighted. Shared run: 1. bai (CVV) and BfS (CCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
bai
3 ch
BfS

Role in the sentence - bai and BfS

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: bai is anadjective and BfSanabbrev. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 84993, derived from the frequency rank of both members and their visual similarity.

bai is recorded at frequency rank #36,213, classified as anadj, pronounced [bɛ]. BfS is at rank #48,780, tagged as anabbrev, 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 84993, this pair ranks #115,096 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of bai vs BfS

Shared letters: b. Private to "bai": ai. Private to "BfS": fs.

"bai" · 3 letters · shape CVV  ·  "BfS" · 3 letters · shape CCC

Frequently Asked Questions

Is swapping "bai" for "BfS" ever safe?
No - they are not even the same part of speech. "bai" is an adjective and "BfS" an abbrev, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "bai" or "BfS" show up more?
"bai" is the more common of the two: it sits at frequency rank #36,213 in our German list, against #48,780 for "BfS". 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 "bai" and "BfS".

  • Full dictionary entry for "bai" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "BfS" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #115,096 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "bai" and "BfS" also get mixed up with nearby pairs, the highest-scored neighbour is "BfS vs puzzles". Nearby pair

Confusion rank #115,096 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