rtg.

Noun

rating (plural ratings)

1. A position on a scale.
2. An evaluation of status, especially of financial status.
   • They have a poor credit rating.
3. A number, letter, or other mark that refers to the ability of something.
   • He has a high chess rating.
4. A quantitative measure of the audience of a television program.
   • A rating, at best, is an indication of how many people saw what you gave them.1961 May 9, Newton N. Minow, Television and the Public Interest
5. A seaman in a warship.
   • Some 400 Russian ratings are living in the western French port, awaiting delivery of their controversial new command-and-control ship, the Vladivostok.2014, BBC News, Huge Russian warship fascinates French in Saint-Nazaire
6. (UK) An enlisted seaman not a commissioned officer or warrant officer.
   • In the Royal Navy the ratings, in order, are: ordinary seaman, able seaman, leading seaman, petty officer and chief petty officer.