cui bono? /kī or kwē bōˈnō, or kooˈē boˈnō/

1. For whose benefit or advantage is it?
2. Who is the gainer?

• firrier
• firriest
• firring
• firry
• firs
• first
• first aid
• first-aider
• first-aiders
• first and last
• first-attack
• first-begotten
• first blood
• first blush
• First Book of Discipline
• first-born
• first cab off the rank
• first catch your hare
• first cause
• first chop
• first-class
• first-class mail
• first-class post
• first cousin
• first cousin once removed