greywacke
/ˈɡɹeɪ.wak.ə/noun
greywacke is spelled G-R-E-Y-W-A-C-K-E: 9 letters and 3 syllables. It appears about once in every 22 million words in written English, the 141,699th most frequent word form (wordfreq, 2021 data). As a noun, greywacke means “A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix” (English Wiktionary, September 2026). The plural of greywacke is greywackes.
How many letters and syllables are in greywacke?
| Letters | 9: G-R-E-Y-W-A-C-K-E |
|---|---|
| Syllables | 3 (from its pronunciation) |
| In writing | about once in every 22 million words; the 141,699th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is greywacke?
Greywacke appears about once in every 22 million words in written English, the 141,699th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce greywacke?
- UK /ˈɡɹeɪ.wak.ə/
- /ˈɡɹeɪ.wæk/
Greywacke has 3 syllables (counted from the pronunciation).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-greywacke.wav, Wikimedia Commons (author and licence on each file's page).
Forms of greywacke
- greywackes plural
- graywacke
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does greywacke mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does greywacke come from?
Anglicised form of grauwacke.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).