recco vs reconnaissance

recco and reconnaissance both are nouns.

Word	Noun	Adjective	Verb	Adverb
recco	Yes	No	No	No
reconnaissance	Yes	No	No	No

As nouns, reconnaissance is a hypernym of recco; that is, reconnaissance is a word with a broader meaning than recco:

recco: reconnaissance (by shortening)
reconnaissance: the act of reconnoitring (especially to gain information about an enemy or potential enemy)

Other hypernyms of recco include reconnaissance mission.

recco (noun)	reconnaissance (noun)
reconnaissance (by shortening)	the act of reconnoitring (especially to gain information about an enemy or potential enemy)