Does the Word Treachery Mean?

violation of faith; betrayal of trust; treason. an act of perfidy, faithlessness, or treason.

What treachery means?

1 : violation of allegiance or of faith and confidence : treason. 2 : an act of perfidy or treason.

What are examples of treachery?

Treachery is a betrayal of trust. An example of treachery is when you cheat on your wife with her best friend. The act of violating the confidence of another, usually for personal gain. Willful betrayal of fidelity, confidence, or trust; perfidy.