What part of speech is the word driven?

The word "driven" can be several parts of speech depending on how it's used in a sentence:

* Past participle of the verb "drive": This is the most common usage. Example: "The car was driven by a skilled driver."

* Adjective: Meaning "motivated" or "forceful". Example: "She is a driven entrepreneur."

* Past tense of the verb "drive": This is less common but still possible in certain contexts. Example: "The train driven through the night."

To determine the part of speech, you need to look at how the word is used in the sentence.