intransitive verb
Definition: To produce small flashes of light or energy, often seen as sparks, or to show excitement or enthusiasm.
Example: The fire began to spark as the wood caught flame.
noun
Definition: A small flash of light or a tiny piece of something that shines, often seen when something is burning or when electricity is discharged.
Example: The spark from the fire lit up the dark room.
transitive verb
Definition: To cause something to start or happen, especially something exciting or energetic.
Example: The new policy sparked a lot of discussion among the employees.