certification vs papers

certification and papers both are nouns.

Word	Noun	Adjective	Verb	Adverb
certification	Yes	No	No	No
papers	Yes	No	No	No

As nouns, papers is a hypernym of certification; that is, papers is a word with a broader meaning than certification:

certification: a document attesting to the truth of certain stated facts
papers: writing that provides information (especially information of an official nature)

Other hypernyms of certification include document, written document.

certification (noun)	papers (noun)
the act of certifying or bestowing a franchise on	writing that provides information (especially information of an official nature)
validating the authenticity of something or someone
confirmation that some fact or statement is true through the use of documentary evidence
a document attesting to the truth of certain stated facts