[1] : WordNet (r) 2.0

smarten up
     v 1: make neat, smart, or trim; "spruce up your house for
          spring"; "titivate the child" syn: spruce up, spruce,
           titivate, tittivate, slick up, spiff up
     2: dress and groom with particular care, as for a special
        occasion; "he spruced up for the party" syn: spruce up,
         spruce, slick up
see also:
spruce up spruce titivate tittivate slick up spiff up 

[2] : Moby Thesaurus II by Grady Ward, 1.0

48 moby thesaurus words for "smarten up":
   adorn, array, beautify, bedeck, bedizen, blazon, color, dandify,
   deck, deck out, decorate, dizen, doll up, dress, dress up,
   embellish, emblazon, embroider, enrich, fig out, fix up, furbish,
   garnish, grace, gussy up, ornament, paint, prank, prank up, preen,
   prettify, primp, primp up, prink, prink up, redecorate, redo,
   refurbish, set off, set out, slick, smarten, spiff, spruce up,
   titivate, trick out, trick up, trim

Ball Up >> B Words
Ball Up, definition of term: Ball Up
ball+up_pag1.html

Bang Up >> B Words
Bang Up, definition of term: Bang Up
bang+up_pag1.html

Backed Up >> B Words
Backed Up, definition of term: Backed Up
backed+up_pag1.html

Back Up >> B Words
Back Up, definition of term: Back Up
back+up_pag1.html

Ante Up >> A Words
Ante Up, definition of term: Ante Up
ante+up_pag1.html

Act Up >> A Words
Act Up, definition of term: Act Up
act+up_pag1.html