intelligence activity vs intelligence

intelligence activity and intelligence both are nouns.

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

As nouns, intelligence activity and intelligence are synonyms defined as:

intelligence activity and intelligence: the operation of gathering information about an enemy

Other synonyms of intelligence activity include intelligence operation.

intelligence activity (noun)	intelligence (noun)
the operation of gathering information about an enemy	the operation of gathering information about an enemy
	the ability to comprehend; to understand and profit from experience
	information about recent and important events
	secret information about an enemy (or potential enemy)
	a unit responsible for gathering and interpreting information about an enemy