grapnel vs crampon

grapnel and crampon both are nouns.

Word	Noun	Adjective	Verb	Adverb
grapnel	Yes	No	No	No
crampon	Yes	No	No	No

As nouns, crampon is a hyponym of grapnel; that is, crampon is a word with a more specific, narrower meaning than grapnel:

grapnel: a tool consisting of several hooks for grasping and holding; often thrown with a rope
crampon: a hinged pair of curved iron bars; used to raise heavy objects

Other hyponyms of grapnel include crampoon.

grapnel (noun)	crampon (noun)
a light anchor for small boats	an iron spike attached to the shoe to prevent slipping on ice when walking or climbing
a tool consisting of several hooks for grasping and holding; often thrown with a rope	a hinged pair of curved iron bars; used to raise heavy objects