1. An alloy that contains 75 per cent gold
   - 18-carat gold

Type of: alloy, metal

• polycarbonate
• Polycarp
• William Mitchell
• William Morris
• William Nunn Lipscom Jr.
• William of Occam
• William of Ockham
• William of Orange
• William of Wykeham
• William Patterson
• William Penn
• William Penn Adair Rogers
• William Pitt
• William Ralph Inge
• William Randolph Hearst
• William Rehnquist
• William Richard Morris
• William Rose Benet
• William Rowan Hamilton
• William Rufus
• William S. Burroughs
• William S. Gilbert
• William Saroyan
• William Schwenk Gilbert
• William Seward Burroughs