rockfill
noun
rockfill is spelled R-O-C-K-F-I-L-L: 8 letters. It appears about once in every 51 million words in written English, the 222,788th most frequent word form (wordfreq, 2021 data). As a noun, rockfill means “A dam's embankment of compacted free-draining granular earth, often containing rocks, with an impervious zone” (English Wiktionary, September 2026). The plural of rockfill is rockfills.
How many letters and syllables are in rockfill?
| Letters | 8: R-O-C-K-F-I-L-L |
|---|---|
| In writing | about once in every 51 million words; the 222,788th 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 rockfill?
Rockfill appears about once in every 51 million words in written English, the 222,788th 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).
Forms of rockfill
- rockfills plural
- rock-fill
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does rockfill mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A dam's embankment of compacted free-draining granular earth, often containing rocks, with an impervious zone.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does rockfill come from?
From rock + fill.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).