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

• presumable
• presumably
• presume
• presumed
• presumer
• presumers
• presumes
• presuming
• presumingly
• presumption
• presumption of fact
• presumption of law
• presumptions
• presumptive
• presumptively
• presumptuous
• presumptuously
• presumptuousness
• presuppose
• presupposed
• presupposes
• presupposing
• presupposition
• presuppositions
• presurmise