* Noun: This is the most common usage. It refers to the surroundings or conditions in which a person, animal, or plant lives or operates.
* Example: "The environment is polluted with plastic."
* Adjective: It can also be used as an adjective to describe something related to the environment.
* Example: "We need to take environmental action."
* Verb: Less common, but it can be used as a verb meaning "to surround" or "to place in a particular setting."
* Example: "The city environments the factory."
So, the part of speech for "environment" depends on how it is used in the sentence.