jocularity vs leg-pull

jocularity and leg-pull both are nouns.

Word	Noun	Adjective	Verb	Adverb
jocularity	Yes	No	No	No
leg-pull	Yes	No	No	No

As nouns, leg-pull is a hyponym of jocularity; that is, leg-pull is a word with a more specific, narrower meaning than jocularity:

jocularity: activity characterized by good humor
leg-pull: as a joke: trying to make somebody believe something that is not true

Other hyponyms of jocularity include drollery, waggery, leg-pulling, pleasantry.

jocularity (noun)	leg-pull (noun)
activity characterized by good humor	as a joke: trying to make somebody believe something that is not true
fun characterized by humor
a feeling of facetious merriment