be on to something

be onto (something)

To discover, realize, or be in the process of doing something of great importance, value, or insight. Great work on this essay, Lindsay. I really think you're onto something here. Scientists now believe they may be onto a cure for cancer. Please tell me you're onto a solution because we're running out of time!

Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.

be on to something

have an idea or information that is likely to lead to an important discovery. informal

See also: on, something, to

Farlex Partner Idioms Dictionary © Farlex 2017