slick up vs smarten up

slick up and smarten up both are verbs.

Word	Noun	Adjective	Verb	Adverb
slick up	No	No	Yes	No
smarten up	No	No	Yes	No

As verbs, slick up and smarten up are synonyms defined as:

slick up and smarten up: dress and groom with particular care, as for a special occasion

Other synonyms of slick up include spruce, spruce up.

As verbs, slick up and smarten up are synonyms defined as:

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

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