activity vs pizzaz

activity and pizzaz both are nouns.

Word	Noun	Adjective	Verb	Adverb
activity	Yes	No	No	No
pizzaz	Yes	No	No	No

As nouns, pizzaz is a hyponym of activity; that is, pizzaz is a word with a more specific, narrower meaning than activity:

activity: the trait of being active; moving or acting rapidly and energetically
pizzaz: the activeness of an energetic personality

Other hyponyms of activity include animation, brio, invigoration, spiritedness, vivification, dynamism, oomph, pizzazz, zing.

activity (noun)	pizzaz (noun)
any specific behavior	the activeness of an energetic personality
the trait of being active; moving or acting rapidly and energetically
an organic process that takes place in the body
a process existing in or produced by nature (rather than by the intent of human beings)
the state of being active
(chemistry) the capacity of a substance to take part in a chemical reaction