Which to use
“foo” is a noun and “foy” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #43,447
- “foo” frequency rank
- #14,677
- “foy” frequency rank
- 58124
- confusion score
Side-by-Side Comparison
| Feature | foo | foy |
|---|---|---|
| Definition | Variable métasyntaxique en programmation informatique. | rien, aucun problème. |
Letter map: foo vs foy
Shared letters muted; letters that set foo and foy apart highlighted. Shared run: 2.
Grammar separator: foo vs foy
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: foo is anoun and foyapronoun. On the page they differ by a single letter - o in “foo” becomes y in “foy”. Our composite confusion score for this pair is 58124, 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\. foy is at rank #14,677, tagged as apron.
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 58124, this pair ranks #110,891 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of foo vs foy
Shared letters: fo. Private to "foo": -. Private to "foy": y.
"foo" · 3 letters · shape CVV · "foy" · 3 letters · shape CVV
Frequently Asked Questions
Is swapping "foo" for "foy" ever safe?
Frequency check: "foo" vs "foy" - which ranks higher?
After this comparison
Pair "foo" vs "foy" is on the table, pick a follow-up below.
- Full dictionary entry for "foo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "foy" - compare definitions side by side with the headword page. Word entry
- This pair ranks #110,891 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "foo" and "foy" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs foo". Nearby pair
Confusion rank #110,891 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.