seismology
/saɪzˈmɑl.ə.d͡ʒi/
"seismology" is a 10-letter English headword indexed on PlainSpell.
The verdict
“seismology” is uncommon English (frequency #66,278 among 54,294 “S” headwords), classed as a noun. The kind of spelling people second-guess.
- #66,278
- frequency rank, English
- 54,294
- “S” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The study of the vibration of the Earth's interior caused by natural and unnatural sources, such as earthquakes.
| Property | Value |
|---|---|
| Headword | seismology |
| Language | English |
| Part of speech | Noun |
| IPA | /saɪzˈmɑl.ə.d͡ʒi/ |
| Letters | 10 |
| Frequency rank | #66,278 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “seismology” sits in English frequency
Rare enough to double-check
seismology is uncommon English at frequency #66,278 among 54,294 “S” headwords, classed as anoun, transcribed /saɪzˈmɑl.ə.d͡ʒi/. Rarity is why readers land here mid-draft. Gloss: "The study of the vibration of the Earth's interior caused by natural and unnatural sources, such as earthquakes.".
No generated misspelling entries exist for seismology in our index, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From seismo- + -logy. The correct English form is seismology, spelled S-E-I-S-M-O-L-O-G-Y.
Definition
- 1The study of the vibration of the Earth's interior caused by natural and unnatural sources, such as earthquakes.
Etymology
From seismo- + -logy.
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
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Using “seismology”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-E-I-S-M-O-L-O-G-Y - every other letter order is a misspelling in standard orthography.
- Say it as /saɪzˈmɑl.ə.d͡ʒi/ (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.