MSA
"msa" is a 3-letter English headword indexed on PlainSpell.
The verdict
“MSA” is a moderately-common English word, ranked #31,662 in English word frequency and used as a noun.
- #31,662
- frequency rank, English
- 3
- letters
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of motorway service area.
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 | MSA |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #31,662 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “MSA” sits in English frequency
Spelling & Dictionary Insight
The English entry for MSA is 3 letters long, classified as a noun. Corpus data places it at rank #31,662 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 8 distinct senses for this headword, so context determines which meaning a reader should apply.
MSA has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. It also participates in 20 confusable-pair relationships, "my", "MT", "mu", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
This entry's etymology isn't recorded, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is MSA, spelled M-S-A.
Definition
- 1Initialism of motorway service area.
- 2Initialism of multiple system atrophy.
- 3Initialism of metropolitan statistical area.
- 4Initialism of master service agreement.
- 5Initialism of Master Settlement Agreement.
- 6Initialism of minimum safe altitude.
- 7Abbreviation of mechanically steered array.
- 8Initialism of mail submission agent.
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 “MSA”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is M-S-A - every other letter order is a misspelling in standard orthography.
- Don't mix it up with “my” - see the side-by-side comparison. MSA vs my
- Browse more English words and confusable pairs in the same reference. English words
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.