vandyke beard vs vandyke

vandyke beard and vandyke both are nouns.

Word	Noun	Adjective	Verb	Adverb
vandyke beard	Yes	No	No	No
vandyke	Yes	No	No	No

As nouns, vandyke beard and vandyke are synonyms defined as:

vandyke beard and vandyke: a short pointed beard (named after the artist Anthony Vandyke)

vandyke beard (noun)	vandyke (noun)
a short pointed beard (named after the artist Anthony Vandyke)	a short pointed beard (named after the artist Anthony Vandyke)