blurb vs indorsement

blurb and indorsement both are nouns.

Word	Noun	Adjective	Verb	Adverb
blurb	Yes	No	No	No
indorsement	Yes	No	No	No

As nouns, blurb and indorsement are synonyms defined as:

blurb and indorsement: a promotional statement (as found on the dust jackets of books)

Other synonyms of blurb include endorsement.

blurb (noun)	indorsement (noun)
a promotional statement (as found on the dust jackets of books)	the act of endorsing
	formal and explicit approval
	a promotional statement (as found on the dust jackets of books)
	a speech seconding a motion
	a signature that validates something