important vs beta

important is not a noun while beta is a noun.

Word	Noun	Adjective	Verb	Adverb
important	No	Yes	No	No
beta	Yes	Yes	No	No

important (noun)	beta (noun)
	the 2nd letter of the Greek alphabet

important (adjective)	beta (adjective)
of great significance or value	preliminary or testing stage of a software or hardware product
of extreme importance; vital to the resolution of a crisis	second in order of importance
important in effect or meaning
having or suggesting a consciousness of high position
having authority or ascendancy or influence