hash sign

/hæʃ saɪn/

//hæʃ saɪn// noun

"hash-sign" is a 8-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The hash or number sign (#).

Corpus desk

Index EN-hash-sign · hash sign · English

hash sign · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "H" 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 hash sign
PropertyValue
Headwordhash sign
LanguageEnglish
Part of speechNoun
IPA/hæʃ saɪn/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “hash sign” in English

hash signranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

hash sign is uncommon English outside the top frequency list, classed as anoun, transcribed /hæʃ saɪn/. Rarity is why readers land here mid-draft. Gloss: "The hash or number sign (#).".

No misspelling variants are generated for hash sign in our 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, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Our source data has no etymology on file for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is hash sign, spelled H-A-S-H- -S-I-G-N.

Definition

  1. 1
    The hash or number sign (#).

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 "hash sign"?
"hash sign" is spelled H-A-S-H- -S-I-G-N. The IPA pronunciation is /hæʃ saɪn/.
What does "hash sign" mean?
As a noun, "hash sign" means: The hash or number sign (#).
How do you pronounce "hash sign"?
The IPA (International Phonetic Alphabet) transcription for "hash sign" is /hæʃ saɪn/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "hash sign" come from?
"hash sign" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
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Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list