FebvsFSBWhat's the difference?

Which to use

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

#47,894
“Feb” frequency rank
#45,626
“FSB” frequency rank
93520
confusion score

Side-by-Side Comparison

Feature Feb FSB
Definition Février. Service de renseignement de la Russie chargé des affaires de sécurité intérieure, successeur du service de la sécurité intérieure du KGB.

Where the eye mixes Feb and FSB

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. Feb (CVC) and FSB (CCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
Feb
3 ch
FSB

Look-alike desk: Feb vs FSB

A purely visual mix-up. Feb (\fɛb\) and FSB (\ɛf.ɛs.be\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - e in “Feb” becomes s in “FSB”. Our composite confusion score for this pair is 93520, derived from the frequency rank of both members and their visual similarity.

Feb is recorded at frequency rank #47,894, classified as aname, pronounced \fɛb\. FSB is at rank #45,626, tagged as aname, pronounced \ɛf.ɛs.be\.

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 93520, this pair ranks #2,224 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of Feb vs FSB

Shared letters: bf. Private to "Feb": e. Private to "FSB": s.

"Feb" · 3 letters · shape CVC  ·  "FSB" · 3 letters · shape CCC

Frequently Asked Questions

Is swapping "Feb" for "FSB" ever safe?
No. They are said differently (\fɛb\ versus \ɛf.ɛs.be\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "Feb" or "FSB"?
"FSB" is the more common of the two: it sits at frequency rank #45,626 in our French list, against #47,894 for "Feb". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "Feb" and "FSB" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "Feb" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "FSB" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,224 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Feb" and "FSB" also get mixed up with nearby pairs, the highest-scored neighbour is "Feb vs Fee". Nearby pair

Confusion rank #2,224 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