disturbance vs activity

disturbance and activity both are nouns.

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

As nouns, activity is a hypernym of disturbance; that is, activity is a word with a broader meaning than disturbance:

disturbance (noun)	activity (noun)
the act of disturbing something or someone; setting something in motion	any specific behavior
a noisy fight	the trait of being active; moving or acting rapidly and energetically
activity that is a malfunction, intrusion, or interruption	an organic process that takes place in the body
electrical or acoustic activity that can disturb communication	a process existing in or produced by nature (rather than by the intent of human beings)
a disorderly outburst or tumult	the state of being active
(psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness	(chemistry) the capacity of a substance to take part in a chemical reaction
an unhappy and worried mental state