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

• inoculates
• inoculating
• inoculation
• inoculations
• inoculative
• inoculator
• inoculators
• inoculatory
• inoculum
• inoculums
• inodorous
• inodorously
• inodorousness
• inodorousnesses
• in-off
• inoffensive
• inoffensively
• inoffensiveness
• inoffensivenesses
• inofficious
• inofficiously
• inofficiousness
• inofficiousnesses
• in-offs
• in on