sema-
"sema" is a 4-letter English headword indexed on PlainSpell.
The verdict
“sema-” is uncommon English (outside the top frequency list), classed as a prefix. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 5
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Communicating meaning.
| Property | Value |
|---|---|
| Headword | sema- |
| Language | English |
| Part of speech | Prefix |
| Letters | 5 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “sema-” sits in English frequency
Rare enough to double-check
sema- is uncommon English outside the top frequency list, classed as aprefix. Rarity is why readers land here mid-draft. 2 senses are on record.
No misspelling variants are generated for sema- in our index, since its letter pattern doesn't lend itself to common typo substitutions. Our confusable-pair dataset has no match for it, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From Ancient Greek σῆμα (sêma, “sign, mark”). The correct English form is sema-, spelled S-E-M-A--.
Definition
- 1Communicating meaning.
- 2Giving signals.
Etymology
From Ancient Greek σῆμα (sêma, “sign, mark”).
Synonyms
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "sema-"?
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Using “sema-”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-E-M-A-- - every other letter order is a misspelling in standard orthography.
- 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.