Question 1

What does "wise up" mean?

Accepted Answer

To stop being naive or foolish and begin to understand the real situation.

Question 2

How do you use "wise up" in a sentence?

Accepted Answer

You need to wise up — nobody is going to give you a promotion just for showing up on time.

Question 3

Is "wise up" formal or informal?

Accepted Answer

"wise up" is informal — used mainly in casual conversation. Often used as an imperative ('Wise up!') to tell someone they are being foolish. Can also take a reflexive sense ('You need to wise up'). Common in American and British informal speech. Sometimes implies mild irritation on the part of the speaker.

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