bracket out vs bracket

bracket out is not a noun while bracket is a noun.

Word	Noun	Adjective	Verb	Adverb
bracket out	No	No	Yes	No
bracket	Yes	No	Yes	No

As verbs, bracket out and bracket are synonyms defined as:

bracket out (noun)	bracket (noun)
	a support projecting from a wall (as to hold a shelf)
	either of two punctuation marks ([ or ]) used to enclose textual material
	either of two punctuation marks (`<' or `>') used in computer programming and sometimes used to enclose textual material
	a category falling within certain defined limits