* Noun: This is the most common use. It refers to written reminders, pieces of music, or even small amounts of money.
* Example: "I took some notes during the lecture."
* Verb: It can mean to make a written record, or to observe or notice something.
* Example: "The detective carefully noted the details of the crime scene."
* Adjective: Less common, but it can describe something that is notable or significant.
* Example: "The professor gave us a notes lecture about the importance of history."
To determine the correct part of speech, you need to look at the context of the sentence.