be onto something

be onto something

1. To have gained an insight that could lead to future success.

   This product could be a game changer. I think you are onto something.

• “be onto something”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “onto something”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “be onto something” (US) / “be onto something” (UK) in Macmillan English Dictionary.