example vs occurrence

example and occurrence both are nouns.

Word	Noun	Adjective	Verb	Adverb
example	Yes	No	No	No
occurrence	Yes	No	No	No

As nouns, occurrence is a hypernym of example; that is, occurrence is a word with a broader meaning than example:

Other hypernyms of example include happening, natural event, occurrent.

example (noun)	occurrence (noun)
a task performed or problem solved in order to develop skill or understanding	an event that happens
an item of information that is typical of a class or group	an instance of something occurring
something to be imitated
a representative form or pattern
punishment intended as a warning to others
an occurrence of something