jazz

1 jazz /ˈʤæz/ noun
1 jazz
/ˈʤæz/
noun
Britannica Dictionary definition of JAZZ
[noncount]
1 
: a type of American music with lively rhythms and melodies that are often made up by musicians as they play
— often used before another noun
2 
informal
a  : meaningless or foolish talk
b  : similar things : stuff
2 jazz /ˈʤæz/ verb
jazzes; jazzed; jazzing
2 jazz
/ˈʤæz/
verb
jazzes; jazzed; jazzing
Britannica Dictionary definition of JAZZ

jazz up

[phrasal verb]
jazz up (something) or jazz (something) up informal
: to make (something) more interesting, exciting, or attractive