fencing vs swordplay

fencing and swordplay both are nouns.

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

As nouns, swordplay is a hypernym of fencing; that is, swordplay is a word with a broader meaning than fencing:

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: the act using a sword (or other weapon) vigorously and skillfully

Other hypernyms of fencing include play, combat, fight, fighting, scrap.

fencing (noun)	swordplay (noun)
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)	the act using a sword (or other weapon) vigorously and skillfully
a barrier that serves to enclose an area
material for building fences