obelisk vs graphic symbol

obelisk and graphic symbol both are nouns.

Word	Noun	Adjective	Verb	Adverb
obelisk	Yes	No	No	No
graphic symbol	Yes	No	No	No

As nouns, graphic symbol is a hypernym of obelisk; that is, graphic symbol is a word with a broader meaning than obelisk:

obelisk: a character used in printing to indicate a second cross reference or footnote when the asterisk has already been used
graphic symbol: a written symbol that is used to represent speech

Other hypernyms of obelisk include character, graph, grapheme.

obelisk (noun)	graphic symbol (noun)
a stone pillar having a rectangular cross section tapering towards a pyramidal top	a written symbol that is used to represent speech
a character used in printing to indicate a second cross reference or footnote when the asterisk has already been used