SHAME

noun

1. Uncomfortable or painful feeling due to recognition or consciousness of one's own impropriety or dishonor or something being exposed that should have been kept private.
2. Something to regret.
3. Reproach incurred or suffered; dishonour; ignominy; derision.

interjection

1. A cry of admonition for the subject of a speech, either to denounce the speaker or to agree with the speaker's denunciation of some person or matter; often used reduplicated, especially in political debates.
2. Expressing sympathy.