fishing gear vs fishing tackle

fishing gear and fishing tackle both are nouns.

Word	Noun	Adjective	Verb	Adverb
fishing gear	Yes	No	No	No
fishing tackle	Yes	No	No	No

As nouns, fishing gear and fishing tackle are synonyms defined as:

Other synonyms of fishing gear include fishing rig, rig, tackle.

fishing gear (noun)	fishing tackle (noun)
gear used in fishing	gear used in fishing