seadog

noun

"seadog" is a 6-letter English headword indexed on PlainSpell.

The verdict

“seadog” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A sailor accustomed to the sea.

Corpus desk

Index EN-seadog · seadog · English

seadog · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 6 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

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.

Key facts for seadog
PropertyValue
Headwordseadog
LanguageEnglish
Part of speechNoun
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “seadog” in English

seadogsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

seadog is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 9 senses are on record.

seadog doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. 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 sea + dog. The correct English form is seadog, spelled S-E-A-D-O-G.

Definition

  1. 1
    A sailor accustomed to the sea.
  2. 2
    A pirate.
  3. 3
    A seal, especially a harbor seal. (marine mammal)
  4. 4
    A charge resembling the talbot but with scales, webbed feet and a broad tail.
  5. 5
    Synonym of sea puppy.
  6. 6
    A dogfish.
  7. 7
    An omen of bad luck.
  8. 8
    A white-topped wave in an estuary.
  9. 9
    A fogbow, as seen by mariners.

Recorded use

Wiktionary examples

These source excerpts show how seadog appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The old seadog knew the storm was coming long before the rest of the crew were aware of it.
  2. The two admiral-ambassadors were themselves two worlds apart. Kirk, now deceased, remained very much a seadog in both speech and mannerism. He was curt and seldom smiled, while Wright, a bit hard of hearing, was always courteous.

Etymology

From sea + dog.

Synonyms

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "seadog"?
"seadog" is spelled S-E-A-D-O-G.
What does "seadog" mean?
As a noun, "seadog" means: A sailor accustomed to the sea.
What is the origin of the word "seadog"?
From sea + dog. 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.

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

Source: FrequencyWords open word-frequency list