Adjectives:
* Venezuelan: This is the most common and widely used adjective for Venezuela.
* Venezolan: This is another, less common, spelling of the adjective.
* Venezuelian: This is an older spelling of the adjective, but it is not as common as "Venezuelan" nowadays.
Nouns:
* Venezuela: This is the name of the country itself.
* Venezuelan: This can also be used as a noun to refer to a person from Venezuela.
* Venezolano/a: This is the Spanish word for "Venezuelan" and can be used as a noun to refer to a person from Venezuela.
It's important to note that "Venezuelan" can be both an adjective and a noun, depending on how it is used in a sentence.