DeumvsducWhich spelling fits?

Quick tell: Deum is a name, duc is a noun, so they fill different roles in a sentence.

Which to use

“Deum” is a name and “duc” is a noun - they look or sound alike but fill different roles in a sentence.

#44,977
“Deum” frequency rank
#2,118
“duc” frequency rank
47095
confusion score

Side-by-Side Comparison

Feature Deum duc
Definition Accusatif de Deus. Titre qui était le plus élevé parmi l’ancienne noblesse de France et de quelques autres États.

Where the eye mixes Deum and duc

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. Deum runs 4 letters (CVVC) against duc's 3 (CVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
Deum
3 ch
duc

Look-alike desk: Deum vs duc

These two trip readers on the page rather than in the ear: Deum is \ˈde.um\ while duc is \dyk\. 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 (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 47095, derived from the frequency rank of both members and their visual similarity.

Deum is recorded at frequency rank #44,977, classified as aname, pronounced \ˈde.um\. duc is at rank #2,118, tagged as anoun, pronounced \dyk\.

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 47095, this pair ranks #189,689 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Deum vs duc

Shared letters: du. Private to "Deum": em. Private to "duc": c.

"Deum" · 4 letters · shape CVVC  ·  "duc" · 3 letters · shape CVC

Known mistypes of this pair

  • Deum ← ddeum · demu · deumm · duem · edum

Frequently Asked Questions

Is swapping "Deum" for "duc" ever safe?
No - they are not even the same part of speech. "Deum" is a name and "duc" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Deum" or "duc"?
"duc" is the more common of the two: it sits at frequency rank #2,118 in our French list, against #44,977 for "Deum". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "Deum" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "duc" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #189,689 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Deum" and "duc" also get mixed up with nearby pairs, the highest-scored neighbour is "denim vs Deum". 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 #189,689 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list