abvsabbConfusable pair

Which to use

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

#9,951
“ab” frequency rank
#48,887
“abb” frequency rank
58838
confusion score

Side-by-Side Comparison

Feature ab abb
Definition ou (académique) Onzième mois du calendrier hébreu. Abbé.

Where the eye mixes ab and abb

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

2 ch
ab
3 ch
abb

Why the eye confuses ab with abb

A purely visual mix-up. ab (\av\) and abb (\ab\) 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 extra letter(s) - “ab” sits inside “abb”. Our composite confusion score for this pair is 58838, derived from the frequency rank of both members and their visual similarity.

ab is recorded at frequency rank #9,951, classified as anoun, pronounced \av\. abb is at rank #48,887, tagged as anoun, pronounced \ab\.

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 58838, this pair ranks #106,592 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of ab vs abb

Shared letters: ab. Private to "ab": -. Private to "abb": -.

"ab" · 2 letters · shape VC  ·  "abb" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "ab" for "abb" ever safe?
No. They are said differently (\av\ versus \ab\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "ab" or "abb"?
"ab" is the more common of the two: it sits at frequency rank #9,951 in our French list, against #48,887 for "abb". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "ab" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "abb" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #106,592 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ab" and "abb" also get mixed up with nearby pairs, the highest-scored neighbour is "abb vs aur". Nearby pair

Confusion rank #106,592 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