fievsfouConfusable pair

Quick tell: fie is a intj, fou is an adjective, so they fill different roles in a sentence.

Which to use

“fie” is an intj and “fou” is an adjective - they look or sound alike but fill different roles in a sentence.

#45,929
“fie” frequency rank
#48,244
“fou” frequency rank
94173
confusion score

Side-by-Side Comparison

Feature fie fou
Definition Sometimes followed by on or upon: used to express distaste, disgust, or outrage. Drunk.

Letter map: fie vs fou

Shared letters muted; letters that set fie and fou apart highlighted. Shared run: 1. fie and fou follow the identical consonant-vowel pattern (CVV). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
fie
3 ch
fou

Role in the sentence - fie and fou

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: fie is anintj and fouanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 94173, derived from the frequency rank of both members and their visual similarity.

fie is recorded at frequency rank #45,929, classified as anintj, pronounced /faɪ/. fou is at rank #48,244, tagged as anadj.

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 94173, this pair ranks #1,518 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of fie vs fou

Shared letters: f. Private to "fie": ei. Private to "fou": ou.

"fie" · 3 letters · shape CVV  ·  "fou" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "fie" for "fou" ever safe?
No - they are not even the same part of speech. "fie" is an intj and "fou" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "fie" vs "fou" - which ranks higher?
"fie" is the more common of the two: it sits at frequency rank #45,929 in our English list, against #48,244 for "fou". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "fie" and "fou". Here's where to go from here.

  • Full dictionary entry for "fie" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fou" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,518 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fie" and "fou" also get mixed up with nearby pairs, the highest-scored neighbour is "FOMO vs fou". Nearby pair

Confusion rank #1,518 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