FF.


Meaning of FF. in English

1.

In a book or magazine, when ~ is written it refers to the page or line mentioned and two or more pages or lines after it.

...p. 173 ~

2.

In a piece of music, ff is a written abbreviation for fortissimo .

Collins COBUILD.      Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) .