aviation vs traveling

aviation and traveling both are nouns.

Word	Noun	Adjective	Verb	Adverb
aviation	Yes	No	No	No
traveling	Yes	No	No	No

As nouns, traveling is a hypernym of aviation; that is, traveling is a word with a broader meaning than aviation:

Other hypernyms of aviation include travel, travelling.

aviation (noun)	traveling (noun)
travel via aircraft	the act of going from one place to another
the art of operating aircraft
the aggregation of a country's military aircraft
the operation of aircraft to provide transportation