(1)喇叭枪
一种在近距离范围内射击比较有效的老式大口径短枪，其有效性依赖于子弹的发散，而不是射击者的枪法如何。

(2)含有多项指控的申诉

(3)(因过于琐碎而导致的)无效辩护

• first fruits
• firsthand knowledge
• first heir
• first impression case
• first in, first out/FIFO
• first in payment of taxes
• First in possession is first in right.
• first in time
• First in time, first in right.
• first inventor
• first lien
• First Lord of the Admiralty
• First Lord of the Treasury
• first meeting
• first meeting of creditors
• first money in, first money out
• first mortgage
• first name
• first occupant
• first of exchange
• first offender
• first open water/FOW
• first option
• first party insurance
• first policy year