For "to say or write something clearly":
* State: "He stated his opinion clearly."
* Declare: "The judge declared the defendant guilty."
* Convey: "The letter conveyed her feelings of love."
* Articulate: "She articulated her ideas in a concise manner."
For "to show feelings or opinions":
* Demonstrate: "He demonstrated his anger by slamming the door."
* Reveal: "Her smile revealed her joy."
* Show: "The painting showed the artist's skill."
For "to move quickly":
* Speed: "The train sped through the countryside."
* Rush: "She rushed to catch the bus."
* Hurtle: "The car hurtled down the mountain road."
For "to transport goods":
* Ship: "The goods were shipped by sea."
* Deliver: "The courier delivered the package."
* Transport: "The company transports goods across the country."
For "to make clear or specific":
* Specify: "The contract specified the terms of the agreement."
* Define: "The dictionary defines the word "express"."
* Clarify: "Please clarify what you mean."
For "to create something":
* Formulate: "The team formulated a new strategy."
* Develop: "The artist developed a unique style."
* Produce: "The factory produces cars."
Remember to choose the synonym that best fits the context of your sentence.