Definition of oyster
- the world was her oyster
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'oyster.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a type of shellfish that has a rough shell with two parts and that is eaten both cooked and raw
What made you want to look up oyster? Please tell us where you read or heard it (including the quote, if possible).