dill weed vs dill

dill weed and dill both are nouns.

Word	Noun	Adjective	Verb	Adverb
dill weed	Yes	No	No	No
dill	Yes	No	No	No

As nouns, dill weed and dill are synonyms defined as:

dill weed and dill: aromatic threadlike foliage of the dill plant used as seasoning

dill weed (noun)	dill (noun)
aromatic threadlike foliage of the dill plant used as seasoning	aromatic threadlike foliage of the dill plant used as seasoning
	aromatic Old World herb having aromatic threadlike foliage and seeds used as seasoning