covin (n.)

• artifice
• cabal
• chicane
• chicanery
• collusion
• complicity
• confederacy
• connivance
• conspiracy
• contrivance
• counterplot
• engineering
• finesse
• frame-up
• game
• intrigue
• machination
• manipulation
• pettifoggery
• plot
• practice
• rigging
• scheme
• skulduggery
• sleight
• stratagem
• trick
• trickery