shellfish

/ˈʃɛl.fɪʃ/

//ˈʃɛl.fɪʃ// noun

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

"shellfish" is a 9-letter English headword indexed on PlainSpell.

The verdict

“shellfish” has 13 generated spelling variants in the English index at frequency #23,991. The variants make it a useful spelling check.

#23,991
frequency rank, English
6,566
“S” headwords
13
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A fisheries and colloquial term for an aquatic invertebrate having an inner or outer shell, such as a mollusc or crustacean, especially when edible.

Corpus desk

Index EN-shellfish · shellfish · English

shellfish · rank #23,991 · 13 variants · 1 confusable

  • FREQ-MID #23,991
  • LEN-LONG 9 letters
  • VOW-2 2 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 13 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH sharpen

Nearest frequency peer: sharpen (-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.

Rank peers near misspelling magnet “shellfish”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “shellfish” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

shellfish vs selfish
78% similar

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

Key facts for shellfish
PropertyValue
Headwordshellfish
LanguageEnglish
Part of speechNoun
IPA/ˈʃɛl.fɪʃ/
Letters9
Frequency rank#23,991
Misspellings tracked13
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “shellfish”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).shellfishlands here:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “sharpen” (#23,990), “sever” (#23,989), “showering” (#23,993). Among 6,566 “S” headwords, “shellfish” is #23,991. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 13 spelling variants around shellfish (IPA /ˈʃɛl.fɪʃ/), anoun. Corpus frequency is #23,991 among 6,566 “S” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 13 likely wrong-spelling variants for shellfish, with forms such as "hsellfish", "sehllfish", and "shelfish". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "selfish", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: Inherited from Middle English schellefyssch, from Old English sċielfisċ. Equivalent to shell + fish. The correct English form is shellfish, spelled S-H-E-L-L-F-I-S-H.

Definition

  1. 1
    A fisheries and colloquial term for an aquatic invertebrate having an inner or outer shell, such as a mollusc or crustacean, especially when edible.
  2. 2
    A culinary and nutritional term for several groups of non-piscine, non-tetrapod, aquatic animals that are used as a food source. The term often exclusively refers to edible aquatic crustaceans, bivalve mollusks and cephalopod mollusks; but sometimes echinoderms may be included as well.

Etymology

Inherited from Middle English schellefyssch, from Old English sċielfisċ. Equivalent to shell + fish.

This word in other languages

marisco(Español)coquillage(Français)Schalentier(Deutsch)marisco(Português)

Common misspellings

Also misspelled as:

  • hsellfish
  • sehllfish
  • shelfish
  • shelflish
  • shellffish
  • shellfihs
  • shellfishh
  • shellfissh
  • shellfsih
  • shellifsh
  • shhellfish
  • shlelfish
  • sshellfish

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of shellfish - 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.

hsellfish2sehllfish2shelfish1shelflish2shellffish1shellfihs2shellfishh1shellfissh1
Edit distance from "shellfish"

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 "shellfish"?
"shellfish" is spelled S-H-E-L-L-F-I-S-H. The IPA pronunciation is /ˈʃɛl.fɪʃ/.
What does "shellfish" mean?
As a noun, "shellfish" means: A fisheries and colloquial term for an aquatic invertebrate having an inner or outer shell, such as a mollusc or crustacean, especially when edible.
What words are commonly confused with "shellfish"?
"shellfish" is commonly confused with "selfish". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "shellfish"?
The IPA (International Phonetic Alphabet) transcription for "shellfish" is /ˈʃɛl.fɪʃ/. 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 "shellfish"?
Inherited from Middle English schellefyssch, from Old English sċielfisċ. Equivalent to shell + fish. 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 "shellfish", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

showering#23,993singleton#23,997saxophone#23,983Samaritan#23,981

Similar misspelling depth

Headwords with a similar count of attested misspellings (13 here; floor ≥5).

shrapnel13 variantsSchuster13 variantsquadruple13 variantsthwarted13 variants

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

Source: FrequencyWords open word-frequency list