fizgig vs leister

fizgig and leister both are nouns.

Word	Noun	Adjective	Verb	Adverb
fizgig	Yes	No	No	No
leister	Yes	No	No	No

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

fizgig: an implement with a shaft and barbed point used for catching fish
leister: a spear with three or more prongs; used for spearing fish (especially salmon)

Other hyponyms of fizgig include harpoon.

fizgig (noun)	leister (noun)
a firework that fizzes as it moves	a spear with three or more prongs; used for spearing fish (especially salmon)
an implement with a shaft and barbed point used for catching fish