old woman vs beach wormwood

old woman and beach wormwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
old woman	Yes	No	No	No
beach wormwood	Yes	No	No	No

As nouns, old woman and beach wormwood are synonyms defined as:

old woman and beach wormwood: herb with greyish leaves found along the east coast of North America; used as an ornamental plant

Other synonyms of old woman include Artemisia stelleriana, dusty miller.

old woman (noun)	beach wormwood (noun)
a woman who is old	herb with greyish leaves found along the east coast of North America; used as an ornamental plant
herb with greyish leaves found along the east coast of North America; used as an ornamental plant