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

• ecstases
• ecstasied
• ecstasies
• ecstasis
• ecstasise
• ecstasised
• ecstasises
• ecstasising
• ecstasize
• ecstasized
• ecstasizes
• ecstasizing
• ecstasy
• ecstasying
• ecstatic
• ecstatically
• ecstatics
• ECT
• ectases
• ectasis
• ecthlipses
• ecthlipsis
• ecthyma
• ecthymas
• ecto-