aviation vs air power

aviation and air power both are nouns.

Word	Noun	Adjective	Verb	Adverb
aviation	Yes	No	No	No
air power	Yes	No	No	No

As nouns, aviation and air power are synonyms defined as:

aviation and air power: the aggregation of a country's military aircraft

aviation (noun)	air power (noun)
travel via aircraft	the aggregation of a country's military aircraft
the art of operating aircraft
the aggregation of a country's military aircraft
the operation of aircraft to provide transportation