ultra vires /ulˈtrə vīˈrēz or ŭlˈträ wēˈrās/

Beyond one's powers or authority

• B-movie
• BMus
• BMW
• BMX
• BMX bike
• bn
• Bn
• BNB
• BNC
• BNES
• BNFL
• BNP
• b.o.
• bo
• B.O.
• boa
• boab
• boabs
• BOAC
• boa constrictor
• boa constrictors
• boak
• boaked
• boaking
• boaks