is a specific kind of: ameliorate, amend, better, improve, meliorate.

is a broader term that covers: groom, neaten | curry, dress, groom | dress up, window-dress | slick up, smarten up, spiff up, spruce, spruce up, titivate, tittivate | polish, shine, smooth, smoothen | become, suit.

is the opposite of: uglify.

derivation: beautification | beauty.