wonder vs occurrence

wonder and occurrence both are nouns.

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

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

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

wonder (noun)	occurrence (noun)
a state in which you want to learn more about something	an event that happens
something that causes feelings of wonder	an instance of something occurring
the feeling aroused by something strange and surprising

wonder (verb)	occurrence (verb)
have a wish or desire to know something
place in doubt or express doubtful speculation
be amazed at