May
month
fifth month of the Gregorian calendar. It was named after Maia, a Roman fertility goddess.- Armorican Massif
- Armory Show
- armour
- armoured vehicle
- Armour, Philip Danforth
- Armoury Museum
- arms, coat of
- arms control
- arms, roll of
- Armstrong
- Armstrong, Edwin H.
- Armstrong, Henry
- Armstrong, Henry Edward
- Armstrong, John
- Armstrong, Lance
- Armstrong, Louis
- Armstrong, Neil
- Armstrong, Samuel Chapman
- Armstrong, William George Armstrong, Baron
- army
- Arna Bontemps
- Arnaud, Georges
- Arnaud, Henri
- Arnaud-Michel d' Abbadie, Antoine-Thomson d'; and Abbadie
- Arnauld, Antoine