CecilevsCecilyWhat's the difference?

Which to use

“Cecile” and “Cecily” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#45,257
“Cecile” frequency rank
#45,258
“Cecily” frequency rank
90515
confusion score

Side-by-Side Comparison

Feature Cecile Cecily
Definition A female given name from Latin. A female given name from Latin, from the medieval vernacular form of Cecilia.

Letter map: Cecile vs Cecily

Shared letters muted; letters that set Cecile and Cecily apart highlighted. Shared run: 5. Cecile and Cecily follow the identical consonant-vowel pattern (CVCVCV). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
Cecile
6 ch
Cecily

Pair insight - Cecile / Cecily

Cecile and Cecily are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - e in “Cecile” becomes y in “Cecily”. Our composite confusion score for this pair is 90515, derived from the frequency rank of both members and their visual similarity.

Cecile is recorded at frequency rank #45,257, classified as aname, pronounced /səˈsiːl/. Cecily is at rank #45,258, tagged as aname.

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 90515, this pair ranks #4,122 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Cecile vs Cecily

Shared letters: ceil. Private to "Cecile": -. Private to "Cecily": y.

"Cecile" · 6 letters · shape CVCVCV  ·  "Cecily" · 6 letters · shape CVCVCV

Known mistypes of this pair

  • Cecile ← ccecile · cceile · ceccile · ceciel · cecille · ceclie · ceicle · eccile
  • Cecily ← ccecily · cceily · ceccily · cecilly · cecilyy · ceciyl · cecliy · ceicly

Frequently Asked Questions

Do "Cecile" and "Cecily" mean the same thing in a sentence?
No. They differ by a single letter - e in “Cecile” becomes y in “Cecily”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Which is more common, "Cecile" or "Cecily"?
"Cecile" is the more common of the two: it sits at frequency rank #45,257 in our English list, against #45,258 for "Cecily". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "Cecile" vs "Cecily" is on the table, pick a follow-up below.

  • Full dictionary entry for "Cecile" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Cecily" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #4,122 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Cecile" and "Cecily" also get mixed up with nearby pairs, the highest-scored neighbour is "Cecile vs Celine". 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 #4,122 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list