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

• carronade
• carronades
• carron oil
• carrot
• carrot and stick
• carrot flies
• carrot fly
• carrotier
• carrotiest
• carrots
• carroty
• carrousel
• carrousels
• carrs
• carry
• carry-all
• carryall
• carry all before one
• carry-alls
• carryalls
• carry a torch
• carry a torch for
• carry away
• carry away the bell
• carry back