ff or ff.

1. Fecerunt (Latin), (they) did it or made it
2. Folios (printing)
3. Following pages, lines, etc
4. Fortissimo (music)

FF

1. Form feed (computing)
2. French franc or francs

• nomadism
• nomadisms
• nomadization
• nomadizations
• nomadize
• nomadized
• nomadizes
• nomadizing
• nomads
• nomady
• no-man
• no-man's-land
• nomarch
• nomarchies
• nomarchs
• nomarchy
• nomas
• no matter
• nombles
• nombril
• nombrils
• nom de guerre
• nom de plume
• nome
• no mean