tang vs bladderwrack

tang and bladderwrack both are nouns.

Word	Noun	Adjective	Verb	Adverb
tang	Yes	No	No	No
bladderwrack	Yes	No	No	No

As nouns, tang and bladderwrack are synonyms defined as:

tang and bladderwrack: a common rockweed used in preparing kelp and as manure

Other synonyms of tang include black rockweed, bladder fucus, Fucus vesiculosus.

tang (noun)	bladderwrack (noun)
any of various kelps especially of the genus Laminaria	a common rockweed used in preparing kelp and as manure
any of various coarse seaweeds	similar to and found with black rockweed
brown algae seaweed with serrated edges
a common rockweed used in preparing kelp and as manure
a tart spicy quality
the taste experience when a savoury condiment is taken into the mouth