What part of speech is understandable?

"Understandable" can be several parts of speech, depending on its function in a sentence:

* Adjective: Describing something that is easy to understand.

* Noun: The state of being easy to understand.

Examples:

* Adjective: "Her explanation was understandable."

* Noun: "The understandable of the concept is important."

It's important to consider the context of the sentence to determine the correct part of speech.