prayer shawl vs shawl

prayer shawl and shawl both are nouns.

Word	Noun	Adjective	Verb	Adverb
prayer shawl	Yes	No	No	No
shawl	Yes	No	No	No

As nouns, shawl is a hypernym of prayer shawl; that is, shawl is a word with a broader meaning than prayer shawl:

prayer shawl: (Judaism) a shawl with a ritually knotted fringe at each corner; worn by Jews at morning prayer
shawl: cloak consisting of an oblong piece of cloth used to cover the head and shoulders

prayer shawl (noun)	shawl (noun)
(Judaism) a shawl with a ritually knotted fringe at each corner; worn by Jews at morning prayer	cloak consisting of an oblong piece of cloth used to cover the head and shoulders