Weapons training (Bukiwaza) - involving both solo and paired practice with weapons - may appear in contextual practice, or in a separate class dedicated to weapons training.
The standard weapons employed in bukiwaza are the boken (wooden training sword) and the jo (short staff). Many of Aikido's basic empty-hand movements are patterned on the sword.
An allied practice is Bukidori (lit. "Weapon-taking" - unarmed reponse to armed attack). In bukidori, the boken and jo are used, also the tanto (knife - wooden).