birthmark vs strawberry

birthmark and strawberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
birthmark	Yes	No	No	No
strawberry	Yes	No	No	No

As nouns, strawberry is a hyponym of birthmark; that is, strawberry is a word with a more specific, narrower meaning than birthmark:

Other hyponyms of birthmark include nevus flammeus, port-wine stain, hemangioma simplex, strawberry mark.

birthmark (noun)	strawberry (noun)
a blemish on the skin that is formed before birth	a soft red birthmark
	sweet fleshy red fruit
	any of various low perennial herbs with many runners and bearing white flowers followed by edible fruits having many small achenes scattered on the surface of an enlarged red pulpy berry