spruce vs tittivate

spruce is a noun but tittivate is not a noun.

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

As verbs, spruce and tittivate are synonyms defined as:

Other synonyms of spruce include slick up, smarten up, spiff up, spruce up, titivate.

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

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

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