Con*spire" (k&obreve;n*spīr"), v. i. [imp. & p. p. Conspired (- spīrd"); p. pr. & vb. n. Conspiring.] [F. conspirer, L. conspirare to blow together, harmonize, agree, plot; con- + spirare to breathe, blow. See Spirit.] 1. To make an agreement, esp. a secret agreement, to do some act, as to commit treason or a crime, or to do some unlawful deed; to plot together.

They conspired against [Joseph] to slay him.
Gen. xxxvii. 18.

You have conspired against our royal person,
Joined with an enemy proclaimed.
Shak.

2. To concur to one end; to agree.

The press, the pulpit, and the stage
Conspire to censure and expose our age.
Roscommon.

Syn. -- To unite; concur; complot; confederate; league.

Con*spire", v. t. To plot; to plan; to combine for.

Angry clouds conspire your overthrow.
Bp. Hall.

• To secretly plot or make plans together, often used regarding something bad or illegal.
  
• To try and make things go your way. The magician conspired to make the person pick a certain card.