aspic vs pork jelly

aspic and pork jelly both are nouns.

Word	Noun	Adjective	Verb	Adverb
aspic	Yes	No	No	No
pork jelly	Yes	No	No	No

As nouns, pork jelly is a hyponym of aspic; that is, pork jelly is a word with a more specific, narrower meaning than aspic:

aspic: savory jelly based on fish or meat stock used as a mold for meats or vegetables
pork jelly: an aspic made from low-grade cuts of pig meat, such as trotters, containing a significant proportion of connective tissue.

aspic (noun)	pork jelly (noun)
savory jelly based on fish or meat stock used as a mold for meats or vegetables	an aspic made from low-grade cuts of pig meat, such as trotters, containing a significant proportion of connective tissue.