wall hanging vs dossal

wall hanging and dossal both are nouns.

Word	Noun	Adjective	Verb	Adverb
wall hanging	Yes	No	No	No
dossal	Yes	No	No	No

As nouns, dossal is a hyponym of wall hanging; that is, dossal is a word with a more specific, narrower meaning than wall hanging:

wall hanging: decoration that is hung (as a tapestry) on a wall or over a window
dossal: an ornamental hanging of rich fabric hung behind the altar of a church or at the sides of a chancel

Other hyponyms of wall hanging include dossel, Kakemono, lambrequin, arras, tapestry.

wall hanging (noun)	dossal (noun)
decoration that is hung (as a tapestry) on a wall or over a window	an ornamental hanging of rich fabric hung behind the altar of a church or at the sides of a chancel