Here's how:
Verb: This is the most common use of "seek." It means to try to find something or someone.
* Examples:
* "They seek knowledge."
* "The police are seeking a suspect."
Noun: "Seek" is used as a noun to refer to an attempt to find something, especially when it is difficult or requires a lot of effort. It's less common than the verb usage.
* Examples:
* "The seek for a cure was long and arduous."
* "The seek for truth is an eternal journey."
So, to know whether "seek" is a noun or a verb, look at the context and how it's used in the sentence.