stopping vs holdfast

stopping and holdfast both are nouns.

Word	Noun	Adjective	Verb	Adverb
stopping	Yes	No	No	No
holdfast	Yes	No	No	No

As nouns, holdfast is a hypernym of stopping; that is, holdfast is a word with a broader meaning than stopping:

stopping: fastener consisting of a narrow strip of welded metal used to join steel members
holdfast: restraint that attaches to something or holds something in place

Other hypernyms of stopping include fastener, fastening, fixing.

stopping (noun)	holdfast (noun)
the kind of playing that involves pressing the fingers on the strings of a stringed instrument to control the pitch	restraint that attaches to something or holds something in place
fastener consisting of a narrow strip of welded metal used to join steel members