General terms:
* Prepare: This is the most common and general term.
* Get ready: This is a more informal way of saying "prepare."
* Arrange: This implies putting things in order.
* Organize: This implies putting things in a structured way.
* Set up: This implies preparing something for use.
More specific terms:
* Cook: For preparing food.
* Pack: For preparing items for travel or storage.
* Assemble: For putting together parts or components.
* Decorate: For making something visually appealing.
* Dress: For getting yourself ready for an event.
* Clean: For preparing something for use by removing dirt or clutter.
* Fix: For preparing something for use by repairing it.
Examples:
* Prepare a meal.
* Get ready for bed.
* Arrange the flowers.
* Organize your notes.
* Set up the projector.
* Cook dinner.
* Pack your suitcase.
* Assemble the furniture.
* Decorate the Christmas tree.
* Dress for the party.
* Clean the bathroom.
* Fix the broken chair.
The best word to use will depend on the specific situation.