cringle vs fastening

cringle and fastening both are nouns.

Word	Noun	Adjective	Verb	Adverb
cringle	Yes	No	No	No
fastening	Yes	No	No	No

As nouns, fastening is a hypernym of cringle; that is, fastening is a word with a broader meaning than cringle:

cringle: fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines
fastening: restraint that attaches to something or holds something in place

Other hypernyms of cringle include fastener, fixing, holdfast.

cringle (noun)	fastening (noun)
fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines	the act of fastening things together
	restraint that attaches to something or holds something in place