fag end vs remnant

fag end and remnant both are nouns.

Word	Noun	Adjective	Verb	Adverb
fag end	Yes	No	No	No
remnant	Yes	No	No	No

As nouns, remnant is a hypernym of fag end; that is, remnant is a word with a broader meaning than fag end:

fag end: the frayed end of a length of cloth or rope
remnant: a piece of cloth that is left over after the rest has been used or sold

Other hypernyms of fag end include end, oddment, remainder.

fag end (noun)	remnant (noun)
the frayed end of a length of cloth or rope	a piece of cloth that is left over after the rest has been used or sold
the time of the last part of something	a small part or portion that remains after the main part no longer exists