Definition of Conspire

Verb: conspire kun'spI(-u)r

Engage in plotting or enter into a conspiracy, swear together
"They conspired to overthrow the government";
- cabal, complot [archaic], conjure, machinate
Act in unison or agreement and in secret towards a deceitful or illegal purpose
"The two companies conspired to cause the value of the stock to fall";
- collude