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to be anyone's guess
01
to be difficult or almost impossible to predict the outcome of a situation or event
![to [be] (anyone's|anybody's) (guess|call) definition and meaning](https://cdn.langeek.co/photo/44428/original/?type=jpeg "to [be] (anyone's|anybody's) (guess|call) definition and meaning")
What is the origin of the idiom "be anyone's guess" and when to use it?
The idiom "be anyone's guess" likely originates from the idea that in situations where the outcome is uncertain or not easily predicted, anyone's guess is as good as another's. This idiom is used to express that something is unknown or unpredictable, and there is no definitive or clear answer.
Exemple
Given the unpredictable nature of the stock market, it's anyone's call whether the company's shares will rise or fall tomorrow.
