biologischvsbiologischerTell them apart

Which to use

“biologisch” and “biologischer” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#12,877
“biologisch” frequency rank
#25,925
“biologischer” frequency rank
38802
confusion score

Side-by-Side Comparison

Feature biologisch biologischer
Definition die Biologie betreffend, den Gesetzen der Biologie entsprechend Nominativ Singular Maskulinum der starken Deklination des Positivs des Adjektivs biologisch

Where the eye mixes biologisch and biologischer

Muted = shared; highlighted = the visual trap. They share 10 letters in sequence. biologisch runs 10 letters (CVVCVCVCCC) against biologischer's 12 (CVVCVCVCCCVC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
biologisch
12 ch
biologischer

Why the eye confuses biologisch with biologischer

A purely visual mix-up. biologisch ([bioˈloːɡɪʃ]) and biologischer ([bioˈloːɡɪʃɐ]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “biologisch” sits inside “biologischer”. Our composite confusion score for this pair is 38802, derived from the frequency rank of both members and their visual similarity.

biologisch is recorded at frequency rank #12,877, classified as anadj, pronounced [bioˈloːɡɪʃ]. biologischer is at rank #25,925, tagged as anadj, pronounced [bioˈloːɡɪʃɐ].

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 38802, this pair ranks #1,554,221 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of biologisch vs biologischer

Shared letters: bcghilos. Private to "biologisch": -. Private to "biologischer": er.

"biologisch" · 10 letters · shape CVVCVCVCCC  ·  "biologischer" · 12 letters · shape CVVCVCVCCCVC

Known mistypes of this pair

  • biologisch ← bbiologisch · biloogisch · biolgoisch · biollogisch · biologgisch · biologicsh · biologiscch · biologischh
  • biologischer ← bbiologischer · biloogischer · biolgoischer · biollogischer · biologgischer · biologicsher · biologisccher · biologiscehr

Frequently Asked Questions

Is swapping "biologisch" for "biologischer" ever safe?
No. They are said differently ([bioˈloːɡɪʃ] versus [bioˈloːɡɪʃɐ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "biologisch" vs "biologischer" - which ranks higher?
"biologisch" is the more common of the two: it sits at frequency rank #12,877 in our German list, against #25,925 for "biologischer". 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 "biologisch" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "biologischer" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,554,221 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "biologisch" and "biologischer" also get mixed up with nearby pairs, the highest-scored neighbour is "biologischer vs biologisches". 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 #1,554,221 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