Which to use
“codex” is a noun and “cogen” is a verb - they look or sound alike but fill different roles in a sentence.
- #48,897
- “codex” frequency rank
- #19,062
- “cogen” frequency rank
- 67959
- confusion score
Side-by-Side Comparison
| Feature | codex | cogen |
|---|---|---|
| Definition | Tronco, tallo. | Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de coger. |
Where the eye mixes codex and cogen
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses codex with cogen
These two trip readers on the page rather than in the ear: codex is /ˈko.deks/ while cogen is [ˈkoxẽn]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 67959, derived from the frequency rank of both members and their visual similarity.
codex is recorded at frequency rank #48,897, classified as anoun, pronounced /ˈko.deks/. cogen is at rank #19,062, tagged as averb, pronounced [ˈkoxẽn].
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 67959, this pair ranks #35,750 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of codex vs cogen
Shared letters: ceo. Private to "codex": dx. Private to "cogen": gn.
"codex" · 5 letters · shape CVCVC · "cogen" · 5 letters · shape CVCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "codex" for "cogen" ever safe?
Which is more common, "codex" or "cogen"?
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 "codex" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cogen" - compare definitions side by side with the headword page. Word entry
- This pair ranks #35,750 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "codex" and "cogen" also get mixed up with nearby pairs, the highest-scored neighbour is "cade vs codex". 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 #35,750 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.