AU

1. African Union
2. Ångström unit (also ÅU, now usu Å)
3. Astronomical unit

Au (chem)

Gold

• siver
• sivers
• siwash
• siwashed
• siwashes
• siwashing
• six
• sixain
• sixaine
• sixaines
• sixains
• six and half a dozen
• six bits
• six-day
• sixer
• sixers
• sixes
• sixfold
• six-foot
• six-footer
• six-footers
• six-gun
• six-guns
• Six Nations
• six of one and half a dozen of the other