A21
(Redirected from A.21)
A21, A-21 or A.21 may refer to:
- A road in the List of A21 roads
- a21, Inc., an American stock-photography company
- The A21 Campaign, a non-profit, non-governmental organization that combats human trafficking, slave and bonded labor, involuntary domestic servitude, and child soldiery
- Aero A.21, a 1920s-era Czechoslovakian military aeroplane
- Arrows A21, a Formula One car
- British NVC community A21 (Ranunculus baudotii community), a plant community
- Focke-Wulf A 21, a photographic survey variant of the 1927 German Focke-Wulf A 17
- Stearman XA-21, a twin-engine American attack bomber
- A21 (chess opening), a code for the English Opening in chess
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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