Western would most often be an adjective, ie: The Rockies are in the western U.S.
However, if you are talking about a kind of movie, it would be a noun. ie: John Wayne was famous for his many westerns.
The word west is an adjective. It describes something of the west.
what part of speech is work
adverb
i want to know what part of speech is camping
what part of speech is beneath
what part of speech is eleven
The part of speech for "answer" is a noun.
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
adverb
what part of speech is work
The part of speech for "unfamiliar" is an adjective.
The part of speech for "explicit" is an adjective.
The part of speech for "buried" is a verb.
The part of speech for "breezy" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "twirl" is a verb.