duckvsdueWhich spelling fits?

Quick tell: duck is a verb, due is an adjective, so they fill different roles in a sentence.

Which to use

“duck” is a verb and “due” is an adjective - they look or sound alike but fill different roles in a sentence.

#17,855
“duck” frequency rank
#19,191
“due” frequency rank
37046
confusion score

Side-by-Side Comparison

Feature duck due
Definition 2. Person Singular Imperativ Präsens Aktiv des Verbs ducken fällig

Where the eye mixes duck and due

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
duck
3 ch
due

Look-alike desk: duck vs due

These two trip readers on the page rather than in the ear: duck is [dʊk] while due is [djuː]. 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 (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 37046, derived from the frequency rank of both members and their visual similarity.

duck is recorded at frequency rank #17,855, classified as averb, pronounced [dʊk]. due is at rank #19,191, tagged as anadj, pronounced [djuː].

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 37046, this pair ranks #1,600,179 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of duck vs due

Shared letters: du. Private to "duck": ck. Private to "due": e.

"duck" · 4 letters · shape CVCC  ·  "due" · 3 letters · shape CVV

Known mistypes of this pair

  • duckdcuk · dduck · ducck · duckk · dukc · udck

Frequently Asked Questions

Is swapping "duck" for "due" ever safe?
No - they are not even the same part of speech. "duck" is a verb and "due" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "duck" or "due" show up more?
"duck" is the more common of the two: it sits at frequency rank #17,855 in our German list, against #19,191 for "due". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "duck" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "due" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,600,179 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "duck" and "due" also get mixed up with nearby pairs, the highest-scored neighbour is "dudes vs due". 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 #1,600,179 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