CahillvschildConfusable pair

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

Which to use

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

#22,919
“Cahill” frequency rank
#500
“child” frequency rank
23419
confusion score

Side-by-Side Comparison

Feature Cahill child
Definition A surname from Irish. A person who has not yet reached adulthood, whether natural (puberty), cultural (initiation), or legal (majority).

Where the eye mixes Cahill and child

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Cahill runs 6 letters (CVCVCC) against child's 5 (CCVCC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
Cahill
5 ch
child

Why the eye confuses Cahill with child

These two trip readers on the page rather than in the ear: Cahill is /ˈkɑːhɪl/ while child is /tʃaɪld/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 23419, derived from the frequency rank of both members and their visual similarity.

Cahill is recorded at frequency rank #22,919, classified as aname, pronounced /ˈkɑːhɪl/. child is at rank #500, tagged as anoun, pronounced /tʃaɪld/.

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 23419, this pair ranks #409,406 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Cahill vs child

Shared letters: chil. Private to "Cahill": a. Private to "child": d.

"Cahill" · 6 letters · shape CVCVCC  ·  "child" · 5 letters · shape CCVCC

Known mistypes of this pair

  • Cahill ← achill · cahhill · cahil · cahlil · caihll · ccahill · chaill
  • child ← cchild · chhild · chidl · childd · chilld · chlid · cihld · hcild

Frequently Asked Questions

Is swapping "Cahill" for "child" ever safe?
No - they are not even the same part of speech. "Cahill" is a name and "child" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Cahill" vs "child" - which ranks higher?
"child" is the more common of the two: it sits at frequency rank #500 in our English list, against #22,919 for "Cahill". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "Cahill" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "child" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #409,406 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Cahill" and "child" also get mixed up with nearby pairs, the highest-scored neighbour is "Cahill vs Cargill". 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 #409,406 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