To make ready for a specific future purpose; to set up; to assemble or equip.
We prepared the spacecraft for takeoff.
To make ready for eating or drinking; to cook.
We prepared a fish for dinner.
To make oneself ready; to get ready, make preparation.
We prepared for a bumpy ride.
To produce or make by combining elements; to synthesize, compound.
She prepared a meal from what was left in the cupboards.
(followed by the preposition to) Disposed, willing, ready (to do something).
The journalist interviewed an eye-witness who was not prepared to disclose his identity.