Noun: treachery tre-chu-ree
- Betrayal of a trust
"The treachery of the double agent shocked both sides";
- perfidy, perfidiousness
- An act of deliberate betrayal
"His treachery led to the fall of the city";
- betrayal, treason, perfidy
Derived forms: treacheries
Type of: betrayal, dishonesty, disloyalty, knavery [archaic], roguishness
Encyclopedia: Treachery, Faith, and the Great River