Oh yeah, and conspiracies are where people agree to do things that others aren't aware of, in secrecy. I'd say the human world has been created pretty much through conspiracy. People have been machinating getting things done, behind back, backstabbing, etc. Long part of history, hehe.

conspire:
to unite, to agree, to plot
from com "with, together" (see com-) + spirare "to breathe"