grappler vs crampon

grappler and crampon both are nouns.

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

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

grappler: 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 grappler include crampoon.

grappler (noun)	crampon (noun)
a tool consisting of several hooks for grasping and holding; often thrown with a rope	an iron spike attached to the shoe to prevent slipping on ice when walking or climbing
combatant who tries to throw opponent to the ground	a hinged pair of curved iron bars; used to raise heavy objects