aqua – noun mapusyaw na asul at berde  

aquatic – noun halaman o hayop nabubuhay sa tubig

arbiter – noun tagapamagitan

arbor – noun balag

arch – noun arko hubog balantok  

archade – noun hilera ng pamilihan

archipelago – noun kapuluan

architect – noun arkitekto

archive – noun taguan ng mahahalagang talaan