FES vs fox, What's the Difference?

Which to use

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

#39,812
“FES” frequency rank: #2,204
“fox” frequency rank: 42016
confusion score

Side-by-Side Comparison

Feature	FES	fox
Definition	Initialism of floppy eyelid syndrome	A small-to-medium-sized canine mammal, related to dogs and wolves, with a flattened skull, upright triangular ears, a pointed, slightly upturned snout, and a long bushy tail, of the following groups:

Letter map: FES vs fox

Shared letters muted; letters that set FES and fox apart highlighted. Shared run: 1.

3 ch

FES

3 ch

fox

Corpus notes: FES and fox

FES and fox 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 42016, derived from the frequency rank of both members and their visual similarity.

FES is recorded at frequency rank #39,812, classified as anoun. fox is at rank #2,204, tagged as anoun, pronounced /fɒks/.

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 42016, this pair ranks #253,050 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of FES vs fox

Shared letters: f. Private to "FES": es. Private to "fox": ox.

"FES" · 3 letters · shape CVC · "fox" · 3 letters · shape CVC

Frequently Asked Questions

Can "FES" and "fox" be used interchangeably?

No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Which is more common, "FES" or "fox"?

"fox" is the more common of the two: it sits at frequency rank #2,204 in our English list, against #39,812 for "FES". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "FES" and "fox". Here's where to go from here.

Full dictionary entry for "FES" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "fox" - compare definitions side by side with the headword page. Word entry
This pair ranks #253,050 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"FES" and "fox" also get mixed up with nearby pairs, the highest-scored neighbour is "FES vs foh". Nearby pair

Confusion rank #253,050 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.