Meaning of G in English

I. abbreviation

1. German

2. giga-

3. guanine

4. Gulf

II. certification mark

— used to certify that a motion picture is of such a nature that persons of all ages may be allowed admission; compare NC-17 , pg , PG-13 , r

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.