FSA
"fsa" is a 3-letter English headword indexed on PlainSpell.
The verdict
“FSA” sits in 20 confusable pairs (corpus #24,161) as a noun. The look-alike neighbours are the real trap.
- #24,161
- frequency rank, English
- 2,507
- “F” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of flexible spending account or flexible spending arrangement.
Corpus desk
Index EN-fsa · FSA · English
FSA · rank #24,161 · 0 variants · 20 confusables
- FREQ-MID #24,161
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 2,507
- PHOTO-FINISH fondness
Nearest frequency peer: fondness (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Frequency neighbours of confusable “FSA”
Peers at similar corpus weight, separate from look-alike pairs below
- finisher
finisher
75,843 corpus weight
- fluke
fluke
75,842 corpus weight
- fondness
fondness
75,841 corpus weight
- FSA
FSA
75,840 corpus weight
- furnish
furnish
75,839 corpus weight
- gauntlet
gauntlet
75,838 corpus weight
What this shows Bars place “FSA” against nearest ranked English headwords, not a reprint of the confusable-pair desk.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | FSA |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #24,161 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “FSA”
Easy to mix with look-alikes
The spelling risk for FSA is neighbouring look-alikes ("fu", "FW", …), not just typos; it is anoun. Frequency #24,161 among 2,507 “F” headwords. 6 recorded senses keep meaning in play.
FSA has no tracked misspelling variants, which points to an orthography that plays by predictable English rules. It also participates in 20 confusable-pair relationships, "fu", "FW", "fy", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
No borrowing history is documented for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is FSA, spelled F-S-A.
Definition
- 1Initialism of flexible spending account or flexible spending arrangement.
- 2Initialism of forward sortation area (postal system code).
- 3Initialism of finite-state automaton.
- 4Initialism of firm-specific advantage.
- 5Initialism of Florida State Assessment.
- 6Initialism of Fellow of the Society of Antiquaries
Recorded use
Wiktionary exampleThese source excerpts show how FSA appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
This section allows employees, at the employer’s discretion, to convert FSA and HRA balances into an HSA contribution upon enrolling in an HDHP-HSA. The conversion amount is capped at the annual FSA contribution limit ($3,300 in 2025).
Synonyms
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "FSA", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).