span

/spæn/

//spæn// noun

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

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

The verdict

“span” is a regularly-used English word, ranked #6,416 in English word frequency and used as a noun.

#6,416
frequency rank, English
4
letters
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The full width of an open hand from the end of the thumb to the end of the little finger used as an informal unit of length.

Visual similarity to commonly confused words

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

span vs sun
50% similar
span vs spy
50% similar
span vs STA
0% similar

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

Key facts for span
PropertyValue
Headwordspan
LanguageEnglish
Part of speechNoun
IPA/spæn/
Letters4
Frequency rank#6,416
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “span” 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). span 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 span is 4 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /spæn/. Corpus data places it at rank #6,416 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 11 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 6 likely wrong-spelling variants for span, with forms such as "psan", "sapn", and "spann". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "sun", "spy", "STA", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English spanne, from Old English spann, from Proto-Germanic *spannō (“span, handbreadth”), from Proto-Indo-European *(s)pend- (“to stretch”). Cognate with Dutch span, spanne, German Spanne. The sense “pair of horses” is probably from Old English… The correct English form is span, spelled S-P-A-N.

Definition

  1. 1
    The full width of an open hand from the end of the thumb to the end of the little finger used as an informal unit of length.
  2. 2
    Any of various traditional units of length approximating this distance, especially the English handspan of 9 inches forming ⅛ fathom and equivalent to 22.86 cm.
  3. 3
    A small space or a brief portion of time.
  4. 4
    A portion of something by length; a subsequence.
  5. 5
    The spread or extent of an arch or between its abutments, or of a beam, girder, truss, roof, bridge, or the like, between supports.
  6. 6
    The length of a cable, wire, rope, chain between two consecutive supports.
  7. 7
    A rope having its ends made fast so that a purchase can be hooked to the bight; also, a rope made fast in the center so that both ends can be used.
  8. 8
    A pair of horses or other animals driven together; usually, such a pair of horses when similar in color, form, and action.
  9. 9
    The space of all linear combinations of vectors within a set.
  10. 10
    The time required to execute a parallel algorithm on an infinite number of processors, i.e. the shortest distance across a directed acyclic graph representing the computation steps.
  11. 11
    wingspan of a plane or bird

Etymology

From Middle English spanne, from Old English spann, from Proto-Germanic *spannō (“span, handbreadth”), from Proto-Indo-European *(s)pend- (“to stretch”). Cognate with Dutch span, spanne, German Spanne. The sense “pair of horses” is probably from Old English ġespan, ġespann (“a joining; a fastening together; clasp; yoke”), from Proto-West Germanic [Term?]. Cognate with Dutch gespan, German Gespann.

This word in other languages

palmo(Español)empan(Français)Spanne(Deutsch)palmo(Português)

Common misspellings

Also misspelled as: psan,sapn,spann,spna,sppan,sspan

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of span - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

psan2sapn2spann1spna2sppan1sspan1
Edit distance from "span"

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 "span"?
"span" is spelled S-P-A-N. The IPA pronunciation is /spæn/.
What does "span" mean?
As a noun, "span" means: The full width of an open hand from the end of the thumb to the end of the little finger used as an informal unit of length.
What words are commonly confused with "span"?
"span" is commonly confused with "sun", "spy", "STA". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "span"?
The IPA (International Phonetic Alphabet) transcription for "span" is /spæn/. 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 "span"?
From Middle English spanne, from Old English spann, from Proto-Germanic *spannō (“span, handbreadth”), from Proto-Indo-European *(s)pend- (“to stretch”). Cognate with Dutch span, spanne, German Spanne. The sense “pair of horses” is probably from O... 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 “span”

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

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