spruce vs neaten

spruce is a noun but neaten is not a noun.

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

As verbs, neaten is a hypernym of spruce; that is, neaten is a word with a broader meaning than spruce:

Other hypernyms of spruce include groom.

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

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

spruce (verb)	neaten (verb)
dress and groom with particular care, as for a special occasion	care for one's external appearance
make neat, smart, or trim	put (things or places) in order