bread-stick vs breadstick

bread-stick and breadstick both are nouns.

Word	Noun	Adjective	Verb	Adverb
bread-stick	Yes	No	No	No
breadstick	Yes	No	No	No

As nouns, bread-stick and breadstick are synonyms defined as:

bread-stick and breadstick: a crisp stick-shaped roll; often served with soup

bread-stick (noun)	breadstick (noun)
a crisp stick-shaped roll; often served with soup	a crisp stick-shaped roll; often served with soup