oyster

/ˈɔɪ.stə/

//ˈɔɪ.stə// noun

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

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

The verdict

“oyster” has 9 generated spelling variants in the English index at frequency #14,181. The variants make it a useful spelling check.

#14,181
frequency rank, English
1,431
“O” headwords
9
tracked misspellings
5
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of certain marine bivalve mollusks, especially those of the family Ostreidae (the true oysters), usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or ...

Corpus desk

Index EN-oyster · oyster · English

oyster · rank #14,181 · 9 variants · 5 confusables

  • FREQ-MID #14,181
  • LEN-LONG 6 letters
  • VOW-3 3 vowels
  • CONFUS-MID 5 pairs
  • VAR-MID 9 variants
  • BOOK-MID 1,431
  • PHOTO-FINISH overwhelmingly

Nearest frequency peer: overwhelmingly (-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 “oyster”

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

corpus weight

What this shows “oyster” 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).

oyster vs oysters
86% similar
oyster vs outer
67% similar
oyster vs otter
67% similar

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

Key facts for oyster
PropertyValue
Headwordoyster
LanguageEnglish
Part of speechNoun
IPA/ˈɔɪ.stə/
Letters6
Frequency rank#14,181
Misspellings tracked9
Confusable pairs5
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “oyster”

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).oysterlands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “overwhelmingly” (#14,180), “pastoral” (#14,182), “ounces” (#14,179). Among 1,431 “O” headwords, “oyster” is #14,181. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 9 spelling variants around oyster (IPA /ˈɔɪ.stə/), anoun. Corpus frequency is #14,181 among 1,431 “O” headwords. Wiktionary lists 7 senses, so context still picks the gloss.

Our generated misspelling index lists 9 likely wrong-spelling variants for oyster, with forms such as "osyter", "oysetr", and "oysster". 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 5 confusable-pair relationships, "oysters", "outer", "otter", 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 oystre, from Old English ostre, reinforced or superseded by Anglo-Norman oistre, which is from Old French oistre, uistre (compare modern French huître); both lines (Old English and Old French) from Latin ostrea, from Ancient Greek ὄστρεο… The correct English form is oyster, spelled O-Y-S-T-E-R.

Definition

  1. 1
    Any of certain marine bivalve mollusks, especially those of the family Ostreidae (the true oysters), usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or in brackish water in the mouth of rivers.
  2. 2
    The delicate oyster-shaped morsel of dark meat contained in a small cavity of the bone on each side of the lower part of the back of a fowl.
  3. 3
    A pale beige color tinted with grey or pink, like that of an oyster.
  4. 4
    A person who keeps secrets.
  5. 5
    Something at one's disposal.
  6. 6
    A shoplifter.
  7. 7
    Ellipsis of Oyster card.

Recorded use

Wiktionary examples

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

  1. Piſt. Why then the world's mine Oyſter, which I, with ſword will open.
  2. He was a bold man that first ate an oyster.

Etymology

From Middle English oystre, from Old English ostre, reinforced or superseded by Anglo-Norman oistre, which is from Old French oistre, uistre (compare modern French huître); both lines (Old English and Old French) from Latin ostrea, from Ancient Greek ὄστρεον (óstreon). Doublet of ostro (“a purple dye”).

This word in other languages

ostra(Español)huître(Français)Auster(Deutsch)ostra(Português)

Common misspellings

Also misspelled as:

  • osyter
  • oysetr
  • oysster
  • oysterr
  • oystre
  • oystter
  • oytser
  • oyyster
  • yoster

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of oyster - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

osyter2oysetr2oysster1oysterr1oystre2oystter1oytser2oyyster1
Edit distance from "oyster"

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 "oyster"?
"oyster" is spelled O-Y-S-T-E-R. The IPA pronunciation is /ˈɔɪ.stə/.
What does "oyster" mean?
As a noun, "oyster" means: Any of certain marine bivalve mollusks, especially those of the family Ostreidae (the true oysters), usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or ...
What words are commonly confused with "oyster"?
"oyster" is commonly confused with "oysters", "outer", "otter". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "oyster"?
The IPA (International Phonetic Alphabet) transcription for "oyster" is /ˈɔɪ.stə/. 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 "oyster"?
From Middle English oystre, from Old English ostre, reinforced or superseded by Anglo-Norman oistre, which is from Old French oistre, uistre (compare modern French huître); both lines (Old English and Old French) from Latin ostrea, from Ancient Gr... 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 "oyster", not the corpus desk frequency band.

Same letter count

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

ounces#14,179Nicola#14,177pearls#14,185nausea#14,175

Similar misspelling depth

Headwords with a similar count of attested misspellings (9 here; floor ≥5).

Nairobi9 variantsMcConnell9 variantsSaturn9 variantssawyer9 variants

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

Source: FrequencyWords open word-frequency list