Which to use
“fora” and “FOSS” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #39,817
- “fora” frequency rank
- #33,655
- “FOSS” frequency rank
- 73472
- confusion score
Side-by-Side Comparison
| Feature | fora | FOSS |
|---|---|---|
| Definition | plural of forum; alternative form of forums | Initialism of Free and Open Source Software. |
Letter map: fora vs FOSS
Shared letters muted; letters that set fora and FOSS apart highlighted. Shared run: 2. fora (CVCV) and FOSS (CVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Pair insight - fora / FOSS
fora and FOSS 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 73472, derived from the frequency rank of both members and their visual similarity.
fora is recorded at frequency rank #39,817, classified as anoun. FOSS is at rank #33,655, tagged as anoun, pronounced /fɒs/.
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 73472, this pair ranks #39,500 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of fora vs FOSS
Shared letters: fo. Private to "fora": ar. Private to "FOSS": s.
"fora" · 4 letters · shape CVCV · "FOSS" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "fora" for "FOSS" ever safe?
In ordinary English text, does "fora" or "FOSS" show up more?
What to do next
Done with this confusable. These links stay specific to "fora" and "FOSS".
- Full dictionary entry for "fora" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "FOSS" - compare definitions side by side with the headword page. Word entry
- This pair ranks #39,500 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "fora" and "FOSS" also get mixed up with nearby pairs, the highest-scored neighbour is "FOMO vs fora". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #39,500 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.