chillsvscoilsWhich spelling fits?

Which to use

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

#16,665
“chills” frequency rank
#18,044
“coils” frequency rank
34709
confusion score

Side-by-Side Comparison

Feature chills coils
Definition plural of chill plural of coil

Where the eye mixes chills and coils

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

6 ch
chills
5 ch
coils

Why the eye confuses chills with coils

A purely visual mix-up. chills (/t͡ʃɪlz/) and coils (/kɔɪlz/) 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 34709, derived from the frequency rank of both members and their visual similarity.

chills is recorded at frequency rank #16,665, classified as anoun, pronounced /t͡ʃɪlz/. coils is at rank #18,044, tagged as anoun, pronounced /kɔɪlz/.

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 34709, this pair ranks #318,417 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of chills vs coils

Shared letters: cils. Private to "chills": h. Private to "coils": o.

"chills" · 6 letters · shape CCVCCC  ·  "coils" · 5 letters · shape CVVCC

Known mistypes of this pair

  • chills ← cchills · chhills · chillss · chils · chilsl · chlils · cihlls · hcills
  • coils ← ccoils · ciols · coills · coilss · coisl · colis · ocils

Frequently Asked Questions

Can "chills" and "coils" be used interchangeably?
No. They are said differently (/t͡ʃɪlz/ versus /kɔɪlz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "chills" vs "coils" - which ranks higher?
"chills" is the more common of the two: it sits at frequency rank #16,665 in our English list, against #18,044 for "coils". 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 "chills" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coils" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #318,417 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "chills" and "coils" also get mixed up with nearby pairs, the highest-scored neighbour is "coils vs coms". 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 #318,417 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