ductvsdulceTell them apart

Quick tell: duct is a noun, dulce is an adjective, so they fill different roles in a sentence.

Which to use

“duct” is a noun and “dulce” is an adjective - they look or sound alike but fill different roles in a sentence.

#13,330
“duct” frequency rank
#43,122
“dulce” frequency rank
56452
confusion score

Side-by-Side Comparison

Feature duct dulce
Definition A pipe, tube or canal which carries gas or liquid from one place to another. sweet

Where the eye mixes duct and dulce

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

4 ch
duct
5 ch
dulce

Look-alike desk: duct vs dulce

These two trip readers on the page rather than in the ear: duct is /dʌkt/ while dulce is /dʌls/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 56452, derived from the frequency rank of both members and their visual similarity.

duct is recorded at frequency rank #13,330, classified as anoun, pronounced /dʌkt/. dulce is at rank #43,122, tagged as anadj, pronounced /dʌls/.

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 56452, this pair ranks #126,192 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of duct vs dulce

Shared letters: cdu. Private to "duct": t. Private to "dulce": el.

"duct" · 4 letters · shape CVCC  ·  "dulce" · 5 letters · shape CVCCV

Known mistypes of this pair

  • duct ← dcut · dduct · ducct · ductt · dutc · udct
  • dulce ← ddulce · dluce · ducle · dulcce · dulec · dullce · udlce

Frequently Asked Questions

Is swapping "duct" for "dulce" ever safe?
No - they are not even the same part of speech. "duct" is a noun and "dulce" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "duct" or "dulce" show up more?
"duct" is the more common of the two: it sits at frequency rank #13,330 in our English list, against #43,122 for "dulce". 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 "duct" and "dulce" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "duct" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dulce" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #126,192 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "duct" and "dulce" also get mixed up with nearby pairs, the highest-scored neighbour is "dulce vs dupe". 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 #126,192 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list