chadlock vs field mustard

chadlock and field mustard both are nouns.

Word	Noun	Adjective	Verb	Adverb
chadlock	Yes	No	No	No
field mustard	Yes	No	No	No

As nouns, chadlock and field mustard are synonyms defined as:

chadlock and field mustard: weedy Eurasian plant often a pest in grain fields

Other synonyms of chadlock include Brassica kaber, charlock, Sinapis arvensis, wild mustard.

chadlock (noun)	field mustard (noun)
weedy Eurasian plant often a pest in grain fields	weedy Eurasian plant often a pest in grain fields