The word "treachery" in English means: The act of betraying someone or something; violation of trust., Disloyalty or deception..
The phonetic transcription of "treachery" is /ˈtretʃəri/ in British English and /ˈtretʃəri/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "treachery": disloyalty, perfidy, deceit, infidelity, betrayal.
Example usage of "treachery": "His treachery hurt many people in town, and no one trusted him.". More examples on the page.