seaway

noun

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

The verdict

“seaway” is uncommon English (frequency #51,381 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#51,381
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A lane or route at sea that is regularly used by ships; a sea lane or trade route.

Corpus desk

Index EN-seaway · seaway · English

seaway · rank #51,381 · 0 variants · 0 confusables

  • FREQ-RARE #51,381
  • LEN-LONG 6 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH semiautomatic

Nearest frequency peer: semiautomatic (+1 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 “seaway”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for seaway
PropertyValue
Headwordseaway
LanguageEnglish
Part of speechNoun
Letters6
Frequency rank#51,381
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “seaway” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).seawayfalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “semiautomatic” (#51,382), “SFX” (#51,383), “sharpener” (#51,385). Among 6,566 “S” headwords, “seaway” is #51,381. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

seaway is uncommon English at frequency #51,381 among 6,566 “S” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

We couldn't generate a plausible misspelling set for seaway, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From Middle English seewey, from Old English sǣweġ (“a seaway, a path through the sea”), equivalent to sea + way. Compare Saterland Frisian Seegong (“seaway, swell”), German Seegang (“seaway, swell”). The correct English form is seaway, spelled S-E-A-W-A-Y.

Definition

  1. 1
    A lane or route at sea that is regularly used by ships; a sea lane or trade route.
  2. 2
    An inland waterway used by seagoing shipping.
  3. 3
    The headway of a vessel.

Recorded use

Wiktionary example

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

  1. The coracle […] was a very safe boat for a person of my height and weight, both buoyant and clever in a seaway; but she was the most cross-grained, lop-sided craft to manage.

Etymology

From Middle English seewey, from Old English sǣweġ (“a seaway, a path through the sea”), equivalent to sea + way. Compare Saterland Frisian Seegong (“seaway, swell”), German Seegang (“seaway, swell”).

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 "seaway"?
"seaway" is spelled S-E-A-W-A-Y.
What does "seaway" mean?
As a noun, "seaway" means: A lane or route at sea that is regularly used by ships; a sea lane or trade route.
What is the origin of the word "seaway"?
From Middle English seewey, from Old English sǣweġ (“a seaway, a path through the sea”), equivalent to sea + way. Compare Saterland Frisian Seegong (“seaway, swell”), German Seegang (“seaway, swell”). 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 "seaway", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 6 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list