be on to

Intermédiaire (B1) informal

To know about something secret, to think someone is doing something wrong, or to be talking to someone.

"The investigative journalist felt she was on to something big with this story."

Expressions associées

be about be along be around be down with be in for be into be on be on at

Plus avec "on to"

back on to come on to cotton on to freeze on to get on to wig on to
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