swordplay vs fencing

swordplay and fencing both are nouns.

Word	Noun	Adjective	Verb	Adverb
swordplay	Yes	No	No	No
fencing	Yes	No	No	No

As nouns, fencing is a hyponym of swordplay; that is, fencing is a word with a more specific, narrower meaning than swordplay:

swordplay: the act using a sword (or other weapon) vigorously and skillfully
fencing: the art or sport of fighting with swords (especially the use of foils or epees or sabres to score points under a set of rules)

swordplay (noun)	fencing (noun)
the act using a sword (or other weapon) vigorously and skillfully	the art or sport of fighting with swords (especially the use of foils or epees or sabres to score points under a set of rules)
	a barrier that serves to enclose an area
	material for building fences