seasick

/ˈsiːsɪk/

//ˈsiːsɪk// adj

"seasick" is a 7-letter English headword indexed on PlainSpell.

The verdict

“seasick” is uncommon English (frequency #68,625 among 6,566 “S” headwords), classed as an adjective. The kind of spelling people second-guess.

#68,625
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Suffering from sickness, nausea or dizziness due to the motion of a ship at sea.

Corpus desk

Index EN-seasick · seasick · English

seasick · rank #68,625 · 0 variants · 0 confusables

  • FREQ-RARE #68,625
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH scrapyard

Nearest frequency peer: scrapyard (-2 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “seasick”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “seasick” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for seasick
PropertyValue
Headwordseasick
LanguageEnglish
Part of speechAdjective
IPA/ˈsiːsɪk/
Letters7
Frequency rank#68,625
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “seasick” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).seasickfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “scrapyard” (#68,623), “seta” (#68,627), “sextant” (#68,628). Among 6,566 “S” headwords, “seasick” is #68,625. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

seasick is uncommon English at frequency #68,625 among 6,566 “S” headwords, classed as anadjective, transcribed /ˈsiːsɪk/. Rarity is why readers land here mid-draft. Gloss: "Suffering from sickness, nausea or dizziness due to the motion of a ship at sea.".

seasick has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From Middle English see seke, equivalent to sea + sick. The correct English form is seasick, spelled S-E-A-S-I-C-K.

Definition

  1. 1
    Suffering from sickness, nausea or dizziness due to the motion of a ship at sea.

Etymology

From Middle English see seke, equivalent to sea + sick.

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

How do you spell "seasick"?
"seasick" is spelled S-E-A-S-I-C-K. The IPA pronunciation is /ˈsiːsɪk/.
What does "seasick" mean?
As an adjective, "seasick" means: Suffering from sickness, nausea or dizziness due to the motion of a ship at sea.
How do you pronounce "seasick"?
The IPA (International Phonetic Alphabet) transcription for "seasick" is /ˈsiːsɪk/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "seasick"?
From Middle English see seke, equivalent to sea + sick. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "seasick", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list