foulsvsfullWhat's the difference?

Quick tell: fouls is a noun, full is an adjective, so they fill different roles in a sentence.

Which to use

“fouls” is a noun and “full” is an adjective - they look or sound alike but fill different roles in a sentence.

#23,837
“fouls” frequency rank
#262
“full” frequency rank
24099
confusion score

Side-by-Side Comparison

Feature fouls full
Definition plural of foul Containing the maximum possible amount that can fit in the space available.

Where the eye mixes fouls and full

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
fouls
4 ch
full

Why the eye confuses fouls with full

These two trip readers on the page rather than in the ear: fouls is /faʊlz/ while full is /fʊl/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 24099, derived from the frequency rank of both members and their visual similarity.

fouls is recorded at frequency rank #23,837, classified as anoun, pronounced /faʊlz/. full is at rank #262, tagged as anadj, pronounced /fʊl/.

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 24099, this pair ranks #404,480 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fouls vs full

Shared letters: flu. Private to "fouls": os. Private to "full": -.

"fouls" · 5 letters · shape CVVCC  ·  "full" · 4 letters · shape CVCC

Known mistypes of this pair

  • foulsffouls · folus · foulls · foulss · fousl · fuols · ofuls
  • fullffull · flul · ful · ufll

Frequently Asked Questions

Can "fouls" and "full" be used interchangeably?
No - they are not even the same part of speech. "fouls" is a noun and "full" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "fouls" or "full" show up more?
"full" is the more common of the two: it sits at frequency rank #262 in our English list, against #23,837 for "fouls". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "fouls" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "full" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #404,480 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fouls" and "full" also get mixed up with nearby pairs, the highest-scored neighbour is "fou vs fouls". 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 #404,480 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