hologram vs holograph

hologram and holograph both are nouns.

Word	Noun	Adjective	Verb	Adverb
hologram	Yes	No	No	No
holograph	Yes	No	No	No

As nouns, hologram and holograph are synonyms defined as:

hologram and holograph: the intermediate photograph (or photographic record) that contains information for reproducing a three-dimensional image by holography

hologram (noun)	holograph (noun)
the intermediate photograph (or photographic record) that contains information for reproducing a three-dimensional image by holography	the intermediate photograph (or photographic record) that contains information for reproducing a three-dimensional image by holography
	handwritten book or document