cockfighting vs spar

cockfighting and spar both are nouns.

Word	Noun	Adjective	Verb	Adverb
cockfighting	Yes	No	No	No
spar	Yes	No	Yes	No

cockfighting (noun)	spar (noun)
participation in the sport of matching gamecocks in a cockfight	making the motions of attack and defense with the fists and arms; a part of training for a boxer
	a stout rounded pole of wood or metal used to support rigging
	any of various nonmetallic minerals (calcite or feldspar) that are light in color and transparent or translucent and cleavable