HSA
"hsa" is a 3-letter English headword indexed on PlainSpell.
The verdict
“HSA” sits in 20 confusable pairs (corpus #44,848) as a noun. The look-alike neighbours are the real trap.
- #44,848
- frequency rank, English
- 2,646
- “H” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of health spending account.
Corpus desk
Index EN-hsa · HSA · English
HSA · rank #44,848 · 0 variants · 20 confusables
- FREQ-MID #44,848
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 2,646
- PHOTO-FINISH hrm
Nearest frequency peer: hrm (-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 neighbourhood for “HSA”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- Holocene
Holocene
55,156 corpus weight
- Hoosier
Hoosier
55,155 corpus weight
- hrm
hrm
55,154 corpus weight
- HSA
HSA
55,153 corpus weight
- humanely
humanely
55,151 corpus weight
- Huw
Huw
55,149 corpus weight
What this shows Bars show where “HSA” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
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 | HSA |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #44,848 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “HSA” sits in English frequency
Easy to mix with look-alikes
The spelling risk for HSA is neighbouring look-alikes ("Hu", "hv", …), not just typos; it is anoun. Frequency #44,848 among 2,646 “H” headwords. 3 recorded senses keep meaning in play.
We couldn't generate a plausible misspelling set for HSA, suggesting the orthography follows predictable English patterns. It also participates in 20 confusable-pair relationships, "Hu", "hv", "huh", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
No documented word history exists for this headword, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is HSA, spelled H-S-A.
Definition
- 1Initialism of health spending account.
- 2Initialism of health savings account.
- 3Initialism of human serum albumin.
Recorded use
Wiktionary exampleThese source excerpts show how HSA appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
This provision allows working seniors who are eligible for Medicare Part A, but enrolled in an HDHP, to continue contributing to an HSA. The current guardrails that apply to individuals that are under 65 and are contributing to HSAs would continue to apply to this population, including a penalty on non-qualified medical expenses purchases. […] This provis…
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "HSA", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).
What to do next
You've looked up "HSA". Here's where to go from here.
- "HSA" maps to 20 confusable pairs in this vintage; the highest-scored is "Hu". View pair
- Usage frequency rank #44,848 among English headwords in this corpus. Corpus statistics
- Browse more English words in the "H" letter cohort. H–Z browse
- PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.
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.