Verb

To make something up or invent it as one goes on; to proceed guided only by imagination, instinct, and guesswork rather than by a careful plan.

He had no speech prepared, so he improvised .

They improvised a simple shelter with branches and the rope they were carrying.

She improvised a lovely solo.

Verb

(prepar)

To make ready for a specific future purpose; to set up; to assemble.

* Bible, Psalms cvii. 36

that they may prepare a city for habitation

* Dryden

our souls, not yet prepared for upper light

To make ready for eating or drinking; to cook.

To make oneself ready; to get ready, make preparation.

* {{quote-book, year=1963, author=(Margery Allingham), title=(The China Governess)

, chapter=19 citation , passage=As soon as Julia returned with a constable, Timothy, who was on the point of exhaustion, prepared to give over to him gratefully. The newcomer turned out to be a powerful youngster, fully trained and eager to help, and he stripped off his tunic at once.}}

To produce or make by combining elements; to synthesize, compound.