pine-tar rag vs shred

pine-tar rag and shred both are nouns.

Word	Noun	Adjective	Verb	Adverb
pine-tar rag	Yes	No	No	No
shred	Yes	No	Yes	No

As nouns, shred is a hypernym of pine-tar rag; that is, shred is a word with a broader meaning than pine-tar rag:

pine-tar rag: baseball equipment consisting of a rag soaked with pine tar; used on the handle of a baseball bat to give a batter a firm grip
shred: a small piece of cloth

Other hypernyms of pine-tar rag include baseball equipment, rag, tag, tag end, tatter.

pine-tar rag (noun)	shred (noun)
baseball equipment consisting of a rag soaked with pine tar; used on the handle of a baseball bat to give a batter a firm grip	a small piece of cloth
	a tiny or scarcely detectable amount

pine-tar rag (verb)	shred (verb)
	tear into shreds