What part of speech is the word East?

The word "East" can be several parts of speech depending on its context:

* Noun: When referring to the cardinal direction. Example: "The sun rises in the East."

* Adjective: When describing something located in the east. Example: "We live in the East Village."

* Adverb: When indicating direction or location. Example: "The birds flew East."

Therefore, it's important to consider the sentence to determine its specific part of speech.