gulfweed vs sargasso

gulfweed and sargasso both are nouns.

Word	Noun	Adjective	Verb	Adverb
gulfweed	Yes	No	No	No
sargasso	Yes	No	No	No

As nouns, gulfweed and sargasso are synonyms defined as:

gulfweed and sargasso: brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea

Other synonyms of gulfweed include sargassum, Sargassum bacciferum.

gulfweed (noun)	sargasso (noun)
brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea	brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea