FCOvsFETWhat's the difference?

Which to use

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

#49,916
“FCO” frequency rank
#40,696
“FET” frequency rank
90612
confusion score

Side-by-Side Comparison

Feature FCO FET
Definition Initialism of Foreign and Commonwealth Office. Ellipsis of FET y de las JONS, a political party in Francoist Spain.

Letter map: FCO vs FET

Shared letters muted; letters that set FCO and FET apart highlighted. Shared run: 1. FCO (CCV) and FET (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
FCO
3 ch
FET

Pair insight - FCO / FET

FCO and FET 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 90612, derived from the frequency rank of both members and their visual similarity.

FCO is recorded at frequency rank #49,916, classified as aname. FET is at rank #40,696, tagged as aname.

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 90612, this pair ranks #4,018 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of FCO vs FET

Shared letters: f. Private to "FCO": co. Private to "FET": et.

"FCO" · 3 letters · shape CCV  ·  "FET" · 3 letters · shape CVC

Frequently Asked Questions

Do "FCO" and "FET" mean the same thing in a sentence?
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, "FCO" or "FET"?
"FET" is the more common of the two: it sits at frequency rank #40,696 in our English list, against #49,916 for "FCO". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "FCO" vs "FET" is on the table, pick a follow-up below.

  • Full dictionary entry for "FCO" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "FET" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #4,018 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "FCO" and "FET" also get mixed up with nearby pairs, the highest-scored neighbour is "FCO vs FOMO". Nearby pair

Confusion rank #4,018 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