valance board vs valance

valance board and valance both are nouns.

Word	Noun	Adjective	Verb	Adverb
valance board	Yes	No	No	No
valance	Yes	No	No	No

As nouns, valance board and valance are synonyms defined as:

valance board and valance: a decorative framework to conceal curtain fixtures at the top of a window casing

Other synonyms of valance board include cornice, pelmet.

valance board (noun)	valance (noun)
a decorative framework to conceal curtain fixtures at the top of a window casing	a decorative framework to conceal curtain fixtures at the top of a window casing