zähvszuConfusable pair

Quick tell: zäh is a adjective, zu is a preposition, so they fill different roles in a sentence.

Which to use

“zäh” is an adjective and “zu” is a preposition - they look or sound alike but fill different roles in a sentence.

#18,775
“zäh” frequency rank
#9
“zu” frequency rank
18784
confusion score

Side-by-Side Comparison

Feature zäh zu
Definition langsam, schwerfällig fließend in Richtung auf

Where the eye mixes zäh and zu

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
zäh
2 ch
zu

Look-alike desk: zäh vs zu

These two trip readers on the page rather than in the ear: zäh is [t͡sɛː] while zu is [t͡suː]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 18784, derived from the frequency rank of both members and their visual similarity.

zäh is recorded at frequency rank #18,775, classified as anadj, pronounced [t͡sɛː]. zu is at rank #9, tagged as aprep, pronounced [t͡suː].

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 18784, this pair ranks #1,914,960 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of zäh vs zu

Shared letters: z. Private to "zäh": . Private to "zu": u.

"zäh" · 3 letters · shape CVC  ·  "zu" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "zäh" for "zu" ever safe?
No - they are not even the same part of speech. "zäh" is an adjective and "zu" a preposition, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "zäh" or "zu" show up more?
"zu" is the more common of the two: it sits at frequency rank #9 in our German list, against #18,775 for "zäh". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "zäh" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "zu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,914,960 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "zäh" and "zu" also get mixed up with nearby pairs, the highest-scored neighbour is "zäh vs zapf". Nearby pair

Confusion rank #1,914,960 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