Noun

Deceit is the act of intentionally misleading or tricking someone through false statements, behavior, or other means, with the intention to gain an advantage or benefit at the expense of the deceived person. Deceit can take many forms, including lying, concealing the truth, misrepresenting facts, or presenting false information as if it were true. Deceitful behavior is often motivated by a desire to avoid consequences, gain power or control, or achieve a personal goal at the expense of others. It is considered a form of dishonesty and is generally viewed as a negative and unethical behavior.

Example

1. Her deceit was uncovered when her lies were exposed in court, and she was sentenced to jail time for fraud.
2. I felt hurt and betrayed when I discovered the deceit in my friend's actions, and it took time to rebuild our relationship.
3. It's difficult to trust someone who has a history of deceit, even if they promise to be truthful in the future.