English phrase from drama scenes

What Does "i think they're on to us" Mean?

Learn what "i think they're on to us" means, when people say it, and how to use it naturally in English.

Intermediate
Neutral
Firm
Express Doubt

I think they're on to us.

The speaker thinks other people have discovered what they were hiding or planning.

From Love Me Or I Die, Episode 20

When do people say this?

Scene Context

Someone is worried that another person has figured out their secret.

Usage Scenario

Use this when you think a secret, scam, or plan has been discovered. It is common in suspenseful or dramatic dialogue.

Better ways to say it

1
I think they're on to us.
2
They're on to us.
3
I think they know.

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