fauna vs vector

fauna and vector both are nouns.

Word	Noun	Adjective	Verb	Adverb
fauna	Yes	No	No	No
vector	Yes	No	No	No

fauna (noun)	vector (noun)
a living organism characterized by voluntary movement	(genetics) a virus or other agent that is used to deliver DNA to a cell
all the animal life in a particular region or period	a variable quantity that can be resolved into components
	any agent (person or animal or microorganism) that carries and transmits a disease
	a straight line segment whose length is magnitude and whose orientation in space is direction