graph vs visual communication

graph and visual communication both are nouns.

Word	Noun	Adjective	Verb	Adverb
graph	Yes	No	Yes	No
visual communication	Yes	No	No	No

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

graph: a visual representation of the relations between certain quantities, represented as points, plotted with reference to a set of axes
visual communication: communication that relies on vision

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

graph (noun)	visual communication (noun)
a visual representation of the relations between certain quantities, represented as points, plotted with reference to a set of axes	communication that relies on vision
a visual display of information
a written symbol that is used to represent speech

graph (verb)	visual communication (verb)
represent by means of a graph
plot upon a graph