The world is your oyster means that you have lots of opportunities and can go wherever you like and do whatever you want. People say it to someone who has many options right now: they are young and free, or have just got a degree or a skill that is in demand. It is often encouragement: go ahead and try, you'll do well.
When would you say the world is your oyster?
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the world is + your/my/her/their + oyster; with + something, the world is your oyster
- When I finished university, my dad told me the world was my oyster.
- With a medical degree and no family ties, the world was her oyster.
- Once you pass the exam, the world is your oyster: you can study almost anywhere.
What changed
First versionAnna has just got her degree, and the world is your oyster.
RevisionAnna has just got her degree, and the world is her oyster.
Your in this idiom changes like any ordinary possessive: the sentence is about Anna, so it is her oyster; when you talk about yourself, it is my oyster. Everything else in the sentence stays the same.
The similar expression the sky's the limit means there is no limit: it is about how far you can go in your career or income. With this idea, the sky's the limit. The world is your oyster is more about the freedom to choose where to go and what to do. In an essay, it is better to replace both idioms with have plenty of opportunities.
Your turn
You're young, you have no debts and you can work from anywhere, so the world is your ___.
Show the answer
oyster — The person is free and can work anywhere, so the whole world is open to them. The idiom only works in this form: the world is your oyster. Pearl is easy to confuse with it because pearls come from oysters, but the word is not part of the phrase.
Give advice to a friend or a graduate who has lots of options. Name two of their strengths and suggest something they should try.
You speak fluent Spanish and you can code, so the world is your oyster: why not apply for a job in Madrid?
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