recce vs reconnaissance

recce and reconnaissance both are nouns.

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

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

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

Other hypernyms of recce include reconnaissance mission.

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