grapple vs dredging bucket

grapple and dredging bucket both are nouns.

Word	Noun	Adjective	Verb	Adverb
grapple	Yes	No	Yes	No
dredging bucket	Yes	No	No	No

As nouns, dredging bucket is a hypernym of grapple; that is, dredging bucket is a word with a broader meaning than grapple:

grapple (noun)	dredging bucket (noun)
the act of engaging in close hand-to-hand combat	a bucket for lifting material from a channel or riverbed
a tool consisting of several hooks for grasping and holding; often thrown with a rope
a dredging bucket with hinges like the shell of a clam

grapple (verb)	dredging bucket (verb)
to grip or seize, as in a wrestling match
succeed in doing, achieving, or producing (something) with the limited or inadequate means available