feldspar
/fɛldspɑɹ/
"feldspar" is a 8-letter English headword indexed on PlainSpell.
The verdict
“feldspar” is uncommon English (frequency #56,116 among 18,613 “F” headwords), classed as a noun. The kind of spelling people second-guess.
- #56,116
- frequency rank, English
- 18,613
- “F” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any of a large group of rock-forming aluminosilicate minerals containing potassium, sodium, or calcium that, together, make up about 60% of the Earth's outer crust.
| Property | Value |
|---|---|
| Headword | feldspar |
| Language | English |
| Part of speech | Noun |
| IPA | /fɛldspɑɹ/ |
| Letters | 8 |
| Frequency rank | #56,116 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “feldspar” sits in English frequency
Rare enough to double-check
feldspar is uncommon English at frequency #56,116 among 18,613 “F” headwords, classed as anoun, transcribed /fɛldspɑɹ/. Rarity is why readers land here mid-draft. Gloss: "Any of a large group of rock-forming aluminosilicate minerals containing potassium, sodium, or calcium that, together, make up about 60% of the Earth's outer crust.".
No generated misspelling entries exist for feldspar in our index, a straightforward case of a spelling with little room for common typos. We don't track a confusable pairing for this entry, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: Partial calque of German Feldspat, formed from Feld (“field”) + Spat (“spar”), the second element replaced with the English cognate spar. The correct English form is feldspar, spelled F-E-L-D-S-P-A-R.
Definition
- 1Any of a large group of rock-forming aluminosilicate minerals containing potassium, sodium, or calcium that, together, make up about 60% of the Earth's outer crust.
Etymology
Partial calque of German Feldspat, formed from Feld (“field”) + Spat (“spar”), the second element replaced with the English cognate spar.
This word in other languages
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
How do you spell "feldspar"?
What does "feldspar" mean?
How do you pronounce "feldspar"?
What is the origin of the word "feldspar"?
Is PlainSpell free to use?
Using “feldspar”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is F-E-L-D-S-P-A-R - every other letter order is a misspelling in standard orthography.
- Say it as /fɛldspɑɹ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.