tacvstachoWhat's the difference?

Which to use

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

#40,239
“tac” frequency rank
#32,800
“tacho” frequency rank
73039
confusion score

Side-by-Side Comparison

Feature tac tacho
Definition der Dübel (Fischerdübel nach dem Erfinder Artur Fischer), der Zapfen Kochtopf

Where the eye mixes tac and tacho

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

3 ch
tac
5 ch
tacho

Look-alike desk: tac vs tacho

A purely visual mix-up. tac ([tak]) and tacho ([ˈtɐʃu]) 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) - “tac” sits inside “tacho”. Our composite confusion score for this pair is 73039, derived from the frequency rank of both members and their visual similarity.

tac is recorded at frequency rank #40,239, classified as anoun, pronounced [tak]. tacho is at rank #32,800, tagged as anoun, pronounced [ˈtɐʃu].

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 73039, this pair ranks #371,447 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of tac vs tacho

Shared letters: act. Private to "tac": -. Private to "tacho": ho.

"tac" · 3 letters · shape CVC  ·  "tacho" · 5 letters · shape CVCCV

Known mistypes of this pair

  • tachoatcho · taccho · tachho · tacoh · tahco · tcaho · ttacho

Frequently Asked Questions

Is swapping "tac" for "tacho" ever safe?
No. They are said differently ([tak] versus [ˈtɐʃu]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary German text, does "tac" or "tacho" show up more?
"tacho" is the more common of the two: it sits at frequency rank #32,800 in our German list, against #40,239 for "tac". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "tac" and "tacho" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "tac" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tacho" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #371,447 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "tac" and "tacho" also get mixed up with nearby pairs, the highest-scored neighbour is "tac vs taut". 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 #371,447 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