marking vs rating

marking and rating both are nouns.

Word	Noun	Adjective	Verb	Adverb
marking	Yes	No	No	No
rating	Yes	No	No	No

As nouns, rating is a hypernym of marking; that is, rating is a word with a broader meaning than marking:

Other hypernyms of marking include evaluation.

marking (noun)	rating (noun)
evaluation of performance by assigning a grade or score	act of ascertaining or fixing the value or worth of
the act of making a visible mark on a surface	an appraisal of the value of something
a pattern of marks	standing or position on a scale
a distinguishing symbol	rank in a military organization