interrex /inˈtər-reks/

1. Someone who rules during an interregnum
2. A regent

• amboceptors
• Amboina pine
• Amboina-wood
• ambones
• ambos
• Amboyna-
• ambries
• ambroid
• ambroids
• ambrosia
• ambrosia beetles
• ambrosial
• ambrosially
• ambrosian
• Ambrosian
• ambrosias
• ambrotype
• ambrotypes
• ambry
• ambs-ace
• ambs-aces
• ambulacra
• ambulacral
• ambulacrum
• ambulance