seasickness
/ˈsiːsɪk.nəs/
"seasickness" is a 11-letter English headword indexed on PlainSpell.
The verdict
“seasickness” is an uncommon English word, ranked #82,764 in English word frequency and used as a noun.
- #82,764
- frequency rank, English
- 11
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Nausea, dizziness etc caused by the motion of a ship; a form of motion sickness.
| Property | Value |
|---|---|
| Headword | seasickness |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈsiːsɪk.nəs/ |
| Letters | 11 |
| Frequency rank | #82,764 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “seasickness” sits in English frequency
Spelling & Dictionary Insight
The English entry for seasickness is 11 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈsiːsɪk.nəs/. Corpus data places it at rank #82,764 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Nausea, dizziness etc caused by the motion of a ship; a form of motion sickness.".
Zero misspellings are on record for seasickness in our index, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From seasick + -ness and/or sea + sickness. Compare Middle English seknesse of the see (“seasickness”, literally “sickness of the sea”). The correct English form is seasickness, spelled S-E-A-S-I-C-K-N-E-S-S.
Definition
- 1Nausea, dizziness etc caused by the motion of a ship; a form of motion sickness.
Etymology
From seasick + -ness and/or sea + sickness. Compare Middle English seknesse of the see (“seasickness”, literally “sickness of the sea”).
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 “seasickness”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-E-A-S-I-C-K-N-E-S-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˈsiːsɪk.nəs/ (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
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.