sparring vs boxing

sparring and boxing both are nouns.

Word	Noun	Adjective	Verb	Adverb
sparring	Yes	No	No	No
boxing	Yes	No	No	No

As nouns, boxing is a hypernym of sparring; that is, boxing is a word with a broader meaning than sparring:

sparring: making the motions of attack and defense with the fists and arms; a part of training for a boxer
boxing: fighting with the fists

Other hypernyms of sparring include fisticuffs, pugilism.

sparring (noun)	boxing (noun)
making the motions of attack and defense with the fists and arms; a part of training for a boxer	fighting with the fists
an argument in which the participants are trying to gain some advantage	the enclosure of something in a package or box