mainshock
noun
mainshock is spelled M-A-I-N-S-H-O-C-K: 9 letters. It appears about once in every 59 million words in written English, the 240,237th most frequent word form (wordfreq, 2021 data). As a noun, mainshock means “The largest earthquake in a sequence, sometimes preceded by foreshocks and almost always followed by aftershocks which are of lesser intensity” (English Wiktionary, September 2026). The plural of mainshock is mainshocks.
How many letters and syllables are in mainshock?
| Letters | 9: M-A-I-N-S-H-O-C-K |
|---|---|
| In writing | about once in every 59 million words; the 240,237th 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 mainshock?
Mainshock appears about once in every 59 million words in written English, the 240,237th 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 mainshock
- mainshocks plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does mainshock mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The largest earthquake in a sequence, sometimes preceded by foreshocks and almost always followed by aftershocks which are of lesser intensity.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Mainshock in Spanish, French, German and Portuguese
In the sense maximum shock in earthquake:
| Language | Words |
|---|---|
| German | Hauptbeben |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does mainshock come from?
From main + shock.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).