sunstone
"sunstone" is a 8-letter English headword indexed on PlainSpell.
The verdict
“sunstone” is uncommon English (frequency #86,810 among 54,294 “S” headwords), classed as a noun. The kind of spelling people second-guess.
- #86,810
- frequency rank, English
- 54,294
- “S” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A translucent form of feldspar having flakes of hematite, used as an ornamental stone.
| Property | Value |
|---|---|
| Headword | sunstone |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #86,810 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “sunstone” sits in English frequency
Rare enough to double-check
sunstone is uncommon English at frequency #86,810 among 54,294 “S” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
The misspelling generator found no plausible variants for sunstone, which points to an orthography that plays by predictable English rules. 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: sun + stone. Compare Icelandic sólarsteinn. The correct English form is sunstone, spelled S-U-N-S-T-O-N-E.
Definition
- 1A translucent form of feldspar having flakes of hematite, used as an ornamental stone.
- 2A stone, possibly Icelandic spar, said in late medieval sources to have been used by navigators in the Viking Age and later to find the location of the sun in an overcast sky, possibly via polatization of light.
Etymology
sun + stone. Compare Icelandic sólarsteinn.
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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Using “sunstone”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-U-N-S-T-O-N-E - 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.