pictograph vs graph

pictograph and graph both are nouns.

Word	Noun	Adjective	Verb	Adverb
pictograph	Yes	No	No	No
graph	Yes	No	Yes	No

As nouns, graph is a hypernym of pictograph; that is, graph is a word with a broader meaning than pictograph:

Other hypernyms of pictograph include character, grapheme, graphic symbol.

pictograph (noun)	graph (noun)
a graphic character used in picture writing	a visual representation of the relations between certain quantities, represented as points, plotted with reference to a set of axes
	a visual display of information
	a written symbol that is used to represent speech

pictograph (verb)	graph (verb)
	represent by means of a graph
	plot upon a graph