1. Out of bed
   "are they astir yet?"
   - up 
2. On the move
   "the whole town was astir over the incident"
   - about

See also: active, awake

• armillary sphere
• Armin
• arming
• Arminian
• Arminian Baptist
• Arminian Church
• Arminianism
• Arminius
• armistice
• Armistice Day
• armless
• armlet
• armlike
• armload
• armoire
• armor
• armor plate
• armor plating
• armor-bearer
• armor-clad
• armor-plated
• Armoracia
• Armoracia rusticana
• armored
• armored car