a level on a scale that shows how good, important, popular etc someone or something is: ➔ credit rating
By the end of the year the Prime Minister's approval rating (=how many people agreed with his policies) had fallen as low as 12 percent.
a list that shows which films, television programmes etc are the most popular:
CBS will end the series if it continues to drop in the ratings.
a letter that shows whether or not a film is suitable for children:
'The Godfather' had an X-rating when it was first shown.
4 [countable]PMN British English
a sailor in the navy who is not an officer