Which to use
“FSB” is a name and “FTP” is an adjective - they look or sound alike but fill different roles in a sentence.
- #32,815
- “FSB” frequency rank
- #28,555
- “FTP” frequency rank
- 61370
- confusion score
Side-by-Side Comparison
| Feature | FSB | FTP |
|---|---|---|
| Definition | The Federal Security Service of the Russian Federation. | free-to-play |
Letter map: FSB vs FTP
Shared letters muted; letters that set FSB and FTP apart highlighted. Shared run: 1.
Grammar separator: FSB vs FTP
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: FSB is aname and FTPanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 61370, derived from the frequency rank of both members and their visual similarity.
FSB is recorded at frequency rank #32,815, classified as aname. FTP is at rank #28,555, tagged as anadj, pronounced /ˌɛf tiː ˈpiː/.
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 61370, this pair ranks #94,732 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of FSB vs FTP
Shared letters: f. Private to "FSB": bs. Private to "FTP": pt.
"FSB" · 3 letters · shape CCC · "FTP" · 3 letters · shape CCC
Frequently Asked Questions
Is swapping "FSB" for "FTP" ever safe?
In ordinary English text, does "FSB" or "FTP" show up more?
What to do next
You've compared "FSB" and "FTP". Here's where to go from here.
- Full dictionary entry for "FSB" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "FTP" - compare definitions side by side with the headword page. Word entry
- This pair ranks #94,732 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "FSB" and "FTP" also get mixed up with nearby pairs, the highest-scored neighbour is "foh vs FSB". Nearby pair
Confusion rank #94,732 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.