abbavsAbbyWhich spelling fits?

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

Which to use

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

#34,838
“abba” frequency rank
#29,618
“Abby” frequency rank
64456
confusion score

Side-by-Side Comparison

Feature abba Abby
Definition Père, géniteur. Prénom féminin diminutif de Abigail.

Letter map: abba vs Abby

Shared letters muted; letters that set abba and Abby apart highlighted. Shared run: 3. abba and Abby follow the identical consonant-vowel pattern (VCCV). Same shape at a glance is often the real trap, independent of shared letters.

4 ch
abba
4 ch
Abby

Part-of-speech tell for abba / Abby

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: abba is anoun and Abbyaname. On the page they differ by a single letter - a in “abba” becomes y in “Abby”. Our composite confusion score for this pair is 64456, derived from the frequency rank of both members and their visual similarity.

abba is recorded at frequency rank #34,838, classified as anoun. Abby is at rank #29,618, tagged as aname, pronounced \ˈæb.i\.

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 64456, this pair ranks #77,019 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of abba vs Abby

Shared letters: ab. Private to "abba": -. Private to "Abby": y.

"abba" · 4 letters · shape VCCV  ·  "Abby" · 4 letters · shape VCCV

Known mistypes of this pair

  • abba ← abab
  • Abby ← abbyy · aby · abyb

Frequently Asked Questions

Is swapping "abba" for "Abby" ever safe?
No - they are not even the same part of speech. "abba" is a noun and "Abby" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "abba" or "Abby"?
"Abby" is the more common of the two: it sits at frequency rank #29,618 in our French list, against #34,838 for "abba". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "abba" vs "Abby" is on the table, pick a follow-up below.

  • Full dictionary entry for "abba" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Abby" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #77,019 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "abba" and "Abby" also get mixed up with nearby pairs, the highest-scored neighbour is "abb vs abba". 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 #77,019 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