abavsabcdWhich spelling fits?

Which to use

“aba” and “abcd” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#48,886
“aba” frequency rank
#43,752
“abcd” frequency rank
92638
confusion score

Side-by-Side Comparison

Feature aba abcd
Definition Manteau de laine en usage en Turquie et dans l’ancienne Perse. Variante de abc.

Where the eye mixes aba and abcd

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

3 ch
aba
4 ch
abcd

Why the eye confuses aba with abcd

A purely visual mix-up. aba (\a.ba\) and abcd (\a.be.se.de\) 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 92638, derived from the frequency rank of both members and their visual similarity.

aba is recorded at frequency rank #48,886, classified as anoun, pronounced \a.ba\. abcd is at rank #43,752, tagged as anoun, pronounced \a.be.se.de\.

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 92638, this pair ranks #2,845 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of aba vs abcd

Shared letters: ab. Private to "aba": -. Private to "abcd": cd.

"aba" · 3 letters · shape VCV  ·  "abcd" · 4 letters · shape VCCC

Known mistypes of this pair

  • abcd ← abbcd · abccd · abcdd · abdc · acbd · bacd

Frequently Asked Questions

Is swapping "aba" for "abcd" ever safe?
No. They are said differently (\a.ba\ versus \a.be.se.de\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "aba" or "abcd"?
"abcd" is the more common of the two: it sits at frequency rank #43,752 in our French list, against #48,886 for "aba". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "aba" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "abcd" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,845 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "aba" and "abcd" also get mixed up with nearby pairs, the highest-scored neighbour is "aba vs aur". 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 #2,845 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