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oyster

nounadjectiveverbattested in dialogue

  • United Kingdom//ˈɔɪ.stə//
  • United States//ˈɔɪ.stɚ//
  • //ˈɔɪ.st͡ʃɚ//

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.

noun

  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.

    Piſt. Why then the world's mine Oyſter, which I, with ſword will open.

    He was a bold man that first ate an oyster.

  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.

    Cut remaining skin on back. Remove the oyster (choice dark meat in spoon-shaped bone on back) with the leg.

  3. 3

    A pale beige color tinted with grey or pink, like that of an oyster.

  4. 4

    A person who keeps secrets.

    Hard and sharp as flint, from which no steel had ever struck out generous fire; secret, and self-contained, and solitary as an oyster.

    I will not be a human oyster. No, I will lay my cards on the table, which is assuredly a thing that oysters do not do.

  5. 5

    figurativeSomething at one's disposal.

    He asked a major Chicago retailer with a large store in the heart of the city about the socioeconomic character of his customers. The man replied proudly that the entire range of economic classes was his oyster.

  6. 6

    slangA shoplifter.

  7. 7

    Variant of Oyster cardslangEllipsis of Oyster card.

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From Middle English oystre, from Old English ostre, reinforced or superseded by Anglo-Norman oistre, which is from Old French oistre, uistre (compare modern French huître); both lines (Old English and Old French) from Latin ostrea, from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”).

adjective

  1. 1

    Of a pale beige colour tinted with grey or pink, like that of an oyster.

verb

  1. 1

    To fish for oysters.

    Most Fishneck watermen oystered in winter, using the same small skiffs from which they potted crabs in summer. Sometimes two men oystered from the same boat or took along a son or younger brother to cull oysters (separate those of legal size from undersized ones and shell).

Forms

plural
oysters
comparative
more oyster
superlative
most oyster
past tense
oystered
past participle
oystered
present participle
oystering
third person singular
oysters
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).