FSF
"fsf" is a 3-letter English headword indexed on PlainSpell.
The verdict
“FSF” is uncommon English (frequency #75,890 among 18,613 “F” headwords), classed as a phrase. The kind of spelling people second-guess.
- #75,890
- frequency rank, English
- 18,613
- “F” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of female seeking female or femme seeking femme.
| Property | Value |
|---|---|
| Headword | FSF |
| Language | English |
| Part of speech | Phrase |
| Letters | 3 |
| Frequency rank | #75,890 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “FSF” sits in English frequency
Rare enough to double-check
FSF is uncommon English at frequency #75,890 among 18,613 “F” headwords, classed as aphrase. Rarity is why readers land here mid-draft. Gloss: "Initialism of female seeking female or femme seeking femme.".
We couldn't generate a plausible misspelling set for FSF, a sign its spelling follows regular English conventions. No close-neighbour confusable shows up for this headword in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
No documented word history exists for this headword, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is FSF, spelled F-S-F.
Definition
- 1Initialism of female seeking female or femme seeking femme.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “FSF”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is F-S-F - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.