spruce vs natty

spruce is a noun but natty is not a noun.

Word	Noun	Adjective	Verb	Adverb
spruce	Yes	Yes	Yes	No
natty	No	Yes	No	No

As adjectives, spruce and natty are synonyms defined as:

Other synonyms of spruce include dapper, dashing, jaunty, raffish, rakish, snappy, spiffy.

spruce (noun)	natty (noun)
any coniferous tree of the genus Picea
light soft moderately strong wood of spruce trees; used especially for timbers and millwork

spruce (adjective)	natty (adjective)
marked by up-to-dateness in dress and manners	marked by up-to-dateness in dress and manners

spruce (verb)	natty (verb)
dress and groom with particular care, as for a special occasion
make neat, smart, or trim