Which to use
“RFI” is a name and “rog” is a noun - they look or sound alike but fill different roles in a sentence.
- #19,656
- “RFI” frequency rank
- #49,334
- “rog” frequency rank
- 68990
- confusion score
Side-by-Side Comparison
| Feature | RFI | rog |
|---|---|---|
| Definition | Station de radio publique française à diffusion internationale. | « ? » ou point d’interrogation |
Where the eye mixes RFI and rog
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between RFI and rog
These two trip readers on the page rather than in the ear: RFI is \ɛ.ʁɛ.fi\ while rog is \ʁɔɡ\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 68990, derived from the frequency rank of both members and their visual similarity.
RFI is recorded at frequency rank #19,656, classified as aname, pronounced \ɛ.ʁɛ.fi\. rog is at rank #49,334, tagged as anoun, pronounced \ʁɔɡ\.
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 68990, this pair ranks #56,917 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of RFI vs rog
Shared letters: r. Private to "RFI": fi. Private to "rog": go.
"RFI" · 3 letters · shape CCV · "rog" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "RFI" for "rog" ever safe?
Which is more common, "RFI" or "rog"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "RFI" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "rog" - compare definitions side by side with the headword page. Word entry
- This pair ranks #56,917 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "RFI" and "rog" also get mixed up with nearby pairs, the highest-scored neighbour is "rog vs roya". Nearby pair
Confusion rank #56,917 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.