conspire

verb3

1. •
   To secretly plot or make plans together, often with the intention to bring bad or illegal results; to collude, to connive, to plot.

   • They conspired against [Joseph] to slay him. — 1611
2. •
   To agree, to concur to one end.

   • The press, the pulpit, and the stage / Conspire to censure and expose our age.
3. •
   To work together to bring about.

   • Rain and sweat conspired to smudge her mascara.