* Noun: This is the most common usage. "Brackets" refer to the punctuation marks [ ] or the symbols ( ) used to enclose words or phrases.
* Example: "The text within the brackets is a footnote."
* Verb: "Bracket" can mean to group or classify something.
* Example: "The survey brackets respondents into age groups."
* Adjective: This is less common, but "bracket" can also be used to describe something related to brackets.
* Example: "The bracket on the shelf was bent."
Let me know if you have a specific sentence in mind and I can help you determine the part of speech of "bracket" in that context!