1) Coconspire 2) Complot 3) Connive 4) Conspire 5) Engineer 6) Plot 1) Devise 2) Get up 3) Initiate 4) Organise 5) Organize 6) Pioneer 7) Prepare 8) Scheme to do harm 9) To conspire 
• (v. i.) To plan; to contrive; esp., to form a scheme with the purpose of doing harm; to contrive artfully; to plot. • (v. t.) To contrive, as a plot; to plot; as, to machinate evil.
Mach'i·nate intransitive verb [ imperfect & past participle Machinated ; present participle & verbal noun Machinating .] [ Latin machinatus , past participle of machinari to devise, plot. See Machine .] To plan; to ...