duckvsductoWhich spelling fits?

Which to use

“duck” and “ducto” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#34,070
“duck” frequency rank
#43,541
“ducto” frequency rank
77611
confusion score

Side-by-Side Comparison

Feature duck ducto
Definition Pato. Conducto, tubería destinada al transporte de fluidos.

Where the eye mixes duck and ducto

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. duck runs 4 letters (CVCC) against ducto's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
duck
5 ch
ducto

Why the eye confuses duck with ducto

A purely visual mix-up. duck (/dʌk/) and ducto ([ˈd̪ukt̪o]) 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 1 letter(s) in length. Our composite confusion score for this pair is 77611, derived from the frequency rank of both members and their visual similarity.

duck is recorded at frequency rank #34,070, classified as anoun, pronounced /dʌk/. ducto is at rank #43,541, tagged as anoun, pronounced [ˈd̪ukt̪o].

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 77611, this pair ranks #15,736 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of duck vs ducto

Shared letters: cdu. Private to "duck": k. Private to "ducto": ot.

"duck" · 4 letters · shape CVCC  ·  "ducto" · 5 letters · shape CVCCV

Known mistypes of this pair

  • duck ← dcuk · dduck · ducck · duckk · dukc · udck
  • ducto ← dcuto · dducto · duccto · ducot · ductto · dutco · udcto

Frequently Asked Questions

Can "duck" and "ducto" be used interchangeably?
No. They are said differently (/dʌk/ versus [ˈd̪ukt̪o]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "duck" or "ducto"?
"duck" is the more common of the two: it sits at frequency rank #34,070 in our Spanish list, against #43,541 for "ducto". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "duck" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ducto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #15,736 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "duck" and "ducto" also get mixed up with nearby pairs, the highest-scored neighbour is "Deusto vs ducto". 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 #15,736 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list