cringle vs fastener

cringle and fastener both are nouns.

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

As nouns, fastener is a hypernym of cringle; that is, fastener 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
fastener: restraint that attaches to something or holds something in place

Other hypernyms of cringle include fastening, fixing, holdfast.

cringle (noun)	fastener (noun)
fastener consisting of a metal ring for lining a small hole to permit the attachment of cords or lines	restraint that attaches to something or holds something in place
	a person who fastens or makes fast