fanweed vs French weed

fanweed and French weed both are nouns.

Word	Noun	Adjective	Verb	Adverb
fanweed	Yes	No	No	No
French weed	Yes	No	No	No

As nouns, fanweed and French weed are synonyms defined as:

fanweed and French weed: foetid Eurasian weed having round flat pods; naturalized throughout North America

Other synonyms of fanweed include field pennycress, mithridate mustard, penny grass, stinkweed, Thlaspi arvense.

fanweed (noun)	French weed (noun)
foetid Eurasian weed having round flat pods; naturalized throughout North America	foetid Eurasian weed having round flat pods; naturalized throughout North America