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PlainSpell

ff

letter, verb

ff is spelled F-F: 2 letters. It appears 6.0 times per million words in written English, the 9,878th most frequent word form (wordfreq, 2021 data). As a letter, ff means “Often written in old manuscripts or transcriptions of them, denoting a capital F” (English Wiktionary, September 2026).

How many letters and syllables are in ff?

Letters2: F-F
In writing6.0 times per million words; the 9,878th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is ff?

Ff appears 6.0 times per million words in written English, the 9,878th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Forms of ff

  • ffs present, singular, he/she/it
  • ffing participle, present
  • ffed participle, past

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does ff mean?

The meanings the English Wiktionary records, quoted as written there (source below).

letter

  1. 1

    Often written in old manuscripts or transcriptions of them, denoting a capital F.

noun

as FF
  1. 1

    Abbreviation of frigate, a type of warship.

  2. 2

    Initialism of false flag.

  3. 3

    Initialism of form feed.

  4. 4

    Initialism of fill factor.

  5. 5

    Initialism of fast-forward.

  6. 6

    slangvulgarInitialism of fist-fucking.

  7. 7

    Initialism of fair face.

verb

as FF
  1. 1

    Initialism of fast-forward.

  2. 2

    Abbreviation of forfeit.

adjective

as FF
  1. 1

    Initialism of fully finished.

verb

  1. 1

    Initialism of forfeit.

    we can't win, ff this shit

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Ff in Spanish, French, German and Portuguese

In the sense and the following:

LanguageWords
Frenchet ss. (et suivantes), s.
Germanff.
Spanishy sigs.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does ff come from?

Abbreviation of Latin foliō (“on the (next) page”), ablative of folium (“leaf, page”).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after ff