* Person nouns refer to individuals (e.g., teacher, student, friend).
* Word is a common noun that refers to a unit of language.
However, "word" can be used as part of a compound noun that does refer to a person.
For example:
* Wordsmith: This refers to a person who writes well.
* Wordmonger: This refers to someone who uses words excessively, often in a manipulative way.
In these cases, the word "word" modifies the noun (smith, monger) to create a person noun.