get wise to (someone or something)

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get wise to (someone or something)

To become fully aware or cognizant of someone or something, especially if he, she, or it is suspicious, illegal, or malicious in nature or intention. We'd better watch our step—I think the police are getting wise to us! I hope my brother doesn't get wise to my scheme to take over the company.
See also: get, wise

get wise to

Also be wise to. See through the deception of; also, become aware of. For example, It took a while, but she finally got wise to Fred's lies, or I'm wise to the fact that her clothes come from a thrift shop. [Colloquial; mid-1800s]
See also: get, wise