Detect (verb)

1. To discover or recognize the existence, presence, or fact of (something).
2. To uncover or reveal the true nature of (something).

Origin:

Middle english, from latin detectus, past participle of detegere to uncover, reveal, from de- + tegere to cover.

Examples:

1. The police were able to detect the stolen car.
2. The new technology can detect cancer cells.
3. The detective was able to detect the criminal's lies.
4. The scientist detected a new element in the sample.
5. She detected a hint of sarcasm in his voice.