noun
plural -ings
[count] :a measurement of how good, difficult, efficient, etc., something or someone is
the ratings :numbers that show how many people watch or listen to a particular television or radio program
[count] :a symbol that is officially given to a movie, video game, etc., to tell people what audience it is appropriate for
[count] :a statement about the normal power or limit of a machine, engine, etc.
[count] Brit :someone in the navy who is not an officer