* Noun: This is the most common use of "apprehension." It means:
* Fear or anxiety about the future: "She felt apprehension about the upcoming surgery."
* Understanding or grasp of something: "The detective had a keen apprehension of the situation."
* Verb: "Apprehend" is a verb meaning:
* To understand or grasp something: "The child apprehended the concept of numbers easily."
* To seize or arrest someone: "The police apprehended the suspect."
So, to determine the part of speech of "apprehension," you need to look at how it's being used in the sentence.