* Noun: This is the most common usage, referring to the act of thinking deeply about something or the result of such thinking.
* Verb: Meaning "to think deeply about something" or "to show or mirror an image."
* Adjective: Describing something that reflects light, sound, or an image.
For example:
* Noun: "She spent the evening in quiet *reflection*."
* Verb: "He *reflected* on his past mistakes."
* Adjective: "The *reflection* of the moon shimmered on the water."
To determine the part of speech, look at its role in the sentence and how it is used.