sail

/seɪl/

//seɪl// noun

By · According to Wiktionary data (CC BY-SA) ·

"sail" is a 4-letter English headword indexed on PlainSpell.

The verdict

“sail” is a regularly-used English word, ranked #7,054 in English word frequency and used as a noun.

#7,054
frequency rank, English
4
letters
5
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A piece of fabric attached to a boat and arranged such that it causes the wind to drive the boat along. The sail may be attached to the boat via a combination of mast, spars and ropes.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

sail vs SI
0% similar
sail vs SL
0% similar
sail vs say
50% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for sail
PropertyValue
Headwordsail
LanguageEnglish
Part of speechNoun
IPA/seɪl/
Letters4
Frequency rank#7,054
Misspellings tracked5
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “sail” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for sail is 4 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /seɪl/. Corpus data places it at rank #7,054 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 12 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 5 likely wrong-spelling variants for sail, with forms such as "asil", "saill", and "sali". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "SI", "SL", "say", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Middle English saile, sayle, seil, seyl, from Old English seġl, from Proto-West Germanic *segl, from Proto-Germanic *seglą. Cognate with West Frisian seil, Low German Segel, Dutch zeil, German Segel, Danish sejl, Swedish segel. The correct English form is sail, spelled S-A-I-L.

Definition

  1. 1
    A piece of fabric attached to a boat and arranged such that it causes the wind to drive the boat along. The sail may be attached to the boat via a combination of mast, spars and ropes.
  2. 2
    The concept of a sail or sails, as if a substance.
  3. 3
    The power harnessed by a sail or sails, or the use of this power for travel or transport.
  4. 4
    A trip in a boat, especially a sailboat.
  5. 5
    A sailing vessel; a vessel of any kind; a craft.
  6. 6
    The conning tower of a submarine.
  7. 7
    The blade of a windmill.
  8. 8
    A tower-like structure found on the dorsal (topside) surface of submarines.
  9. 9
    The floating organ of siphonophores, such as the Portuguese man-of-war.
  10. 10
    A sailfish.
  11. 11
    an outward projection of the spine, occurring in certain dinosaurs and synapsids
  12. 12
    Anything resembling a sail, such as a wing.

Etymology

From Middle English saile, sayle, seil, seyl, from Old English seġl, from Proto-West Germanic *segl, from Proto-Germanic *seglą. Cognate with West Frisian seil, Low German Segel, Dutch zeil, German Segel, Danish sejl, Swedish segel.

Synonyms

sail

This word in other languages

vela(Español)voile(Français)Segel(Deutsch)vela(Português)

Common misspellings

Also misspelled as: asil,saill,sali,sial,ssail

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of sail - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

asil2saill1sali2sial2ssail1
Edit distance from "sail"

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 "sail"?
"sail" is spelled S-A-I-L. The IPA pronunciation is /seɪl/.
What does "sail" mean?
As a noun, "sail" means: A piece of fabric attached to a boat and arranged such that it causes the wind to drive the boat along. The sail may be attached to the boat via a combination of mast, spars and ropes.
What words are commonly confused with "sail"?
"sail" is commonly confused with "SI", "SL", "say". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "sail"?
The IPA (International Phonetic Alphabet) transcription for "sail" is /seɪl/. 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 "sail"?
From Middle English saile, sayle, seil, seyl, from Old English seġl, from Proto-West Germanic *segl, from Proto-Germanic *seglą. Cognate with West Frisian seil, Low German Segel, Dutch zeil, German Segel, Danish sejl, Swedish segel. 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.

Using “sail”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is S-A-I-L - every other letter order is a misspelling in standard orthography.
  • Say it as /seɪl/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “SI” - see the side-by-side comparison. sail vs SI
  • 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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list