A dictionary will tell you the part of speech for each word. For example, the entry for "dictionary" will state noun.
Adjective
Uffish doesn't exist - in my dictionary
The word "vestibule" is a noun. In a dictionary, it is typically defined as a small entryway or passage leading into a larger space, such as a hallway or room. It can also refer to a specific area in certain buildings, like a lobby or foyer.
A noun or a verb. Use a dictionary (www.dictionary.com)
A verb.
The part of speech shown on the dictionary entry for the word "vestibule" is a noun.
The word "superficial" is shown on the dictionary entry as an adjective.
Adjective
noun
The word "superficial" is typically listed as an adjective in a dictionary entry.
The word "superficial" is an adjective.
Vial comes up as a noun.
Dictionary is a noun.
The word experimen can be a noun or a verb.
A dictionary:)
delicte is not in my dictionary
The word "countenance" in a dictionary entry typically refers to the facial expression of a person. It may also include other meanings related to composure or support.