aguraza 胡座 ( あぐらざ ) - sitting with legs crossed

aikijuujutsu 合気柔術 ( あいきじゅうじゅつ ) - aikijuujutsu

aite 相手 ( あいて ) - opponent

aiuchi 相打ち ( あいうち ) - simultaneous strike; mutual kill

ashi sabaki 足捌き ( あしさばき ) - footwork

ashigaru 足軽 ( あしがる ) - foot soldier

ashikou 足鉤 ( あしこう ) - also "sokkou"; metal claws worn on the feet to aid in climbing (Togakure ryuu)

atemi 当身 ( あてみ ) - body strikes; strike to the body