be onto

中級 (B1) informal

To know that something important is there, or to have figured out what someone is really up to.

"The scientists believe they're onto a new treatment that could change everything."

関連フレーズ

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

"onto" を含むフレーズ

back onto clock onto come onto cop onto cotton onto crack onto freeze onto get onto
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