foovsfrsTell them apart

Which to use

“foo” and “frs” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#43,447
“foo” frequency rank
#40,776
“frs” frequency rank
84223
confusion score

Side-by-Side Comparison

Feature foo frs
Definition Variable métasyntaxique en programmation informatique. Abréviation de francs.

Letter map: foo vs frs

Shared letters muted; letters that set foo and frs apart highlighted. Shared run: 1.

3 ch
foo
3 ch
frs

Pair insight - foo / frs

foo and frs are indexed as a confusable French 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 84223, derived from the frequency rank of both members and their visual similarity.

foo is recorded at frequency rank #43,447, classified as anoun, pronounced \fu\. frs is at rank #40,776, tagged as anoun.

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 84223, this pair ranks #13,358 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of foo vs frs

Shared letters: f. Private to "foo": o. Private to "frs": rs.

"foo" · 3 letters · shape CVV  ·  "frs" · 3 letters · shape CCC

Frequently Asked Questions

Is swapping "foo" for "frs" ever safe?
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.
In ordinary French text, does "foo" or "frs" show up more?
"frs" is the more common of the two: it sits at frequency rank #40,776 in our French list, against #43,447 for "foo". 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 "foo" and "frs". Here's where to go from here.

  • Full dictionary entry for "foo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "frs" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #13,358 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "foo" and "frs" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs foo". Nearby pair

Confusion rank #13,358 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list