Jazz

v.energetic, joyfulplayful

What it means

To make something livelier, brighter, or more interesting with added flair.

Reach for it when suggesting a small informal enhancement rather than a structural improvement

Fresh herbs can jazz up a simple bowl of rice.

playful
spice up
extra excitement or literal seasoning is wanted
not when Spice up can imply heat, novelty, or sexual suggestion depending on context.
playful
zhuzh
a stylish finishing adjustment suits very informal speech
not when Zhuzh is less widely understood and focuses more on appearance.
everyday
liven up
added energy makes a place or activity more engaging
not when Liven up can change atmosphere without improving visual style or flavor.
warm
brighten
color, light, or cheer improves the effect
not when Brighten is gentler and lacks jazz's rhythmic flair.
professional
refresh
a modest update restores appeal or relevance
not when Refresh may preserve restraint and does not promise lively character.
professional
revitalize
a tired system or place needs renewed usefulness
not when Revitalize is far more substantial than jazzing up a surface.
formal
embellish
decorative detail is deliberately added
not when Embellish can overdecorate or distort a factual account.

jazz up
Painted handles jazz up the storage boxes without obscuring their labels.
jazz the arrangement
A short brass break can jazz the arrangement without crowding the melody.
jazz the menu
Seasonal herbs jazz the menu more honestly than decorative wording.

Jazz as a verb is informal and culturally derived. Use it for light stylistic enlivening, not as a substitute for substantive repair.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.