foalvsfoilsWhich spelling fits?

Which to use

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

#35,721
“foal” frequency rank
#36,565
“foils” frequency rank
72286
confusion score

Side-by-Side Comparison

Feature foal foils
Definition A young horse or other equine, especially just after birth or less than a year old. plural of foil

Where the eye mixes foal and foils

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. foal runs 4 letters (CVVC) against foils's 5 (CVVCC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
foal
5 ch
foils

Visual trap between foal and foils

A purely visual mix-up. foal (/fəʊl/) and foils (/fɔɪlz/) 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 72286, derived from the frequency rank of both members and their visual similarity.

foal is recorded at frequency rank #35,721, classified as anoun, pronounced /fəʊl/. foils is at rank #36,565, tagged as anoun, pronounced /fɔɪlz/.

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 72286, this pair ranks #43,575 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of foal vs foils

Shared letters: flo. Private to "foal": a. Private to "foils": is.

"foal" · 4 letters · shape CVVC  ·  "foils" · 5 letters · shape CVVCC

Known mistypes of this pair

  • foal ← faol · ffoal · foall · fola · ofal
  • foils ← ffoils · fiols · foills · foilss · foisl · folis · ofils

Frequently Asked Questions

Can "foal" and "foils" be used interchangeably?
No. They are said differently (/fəʊl/ versus /fɔɪlz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "foal" vs "foils" - which ranks higher?
"foal" is the more common of the two: it sits at frequency rank #35,721 in our English list, against #36,565 for "foils". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "foal" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "foils" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #43,575 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "foal" and "foils" also get mixed up with nearby pairs, the highest-scored neighbour is "foal vs FOMO". 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 #43,575 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