| Word | Definition |
| Abaniko |
An Arnis striking technique in which a stick is moved in a fan-like motion.
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| Acharn |
A general term referring to a martial arts instructor.
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| Age uke |
Commonly referred to as a high block, rising block, or upper block depending on the martial art style.
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| Ai |
Most commonly associated with Aikido, it can be translated as "harmony", and refers to a situation in which one combines their energy with their opponents.
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| Aiki |
Translates as "harmony meeting", and refers to a situation when a person combines their energy with the opponents for their own control.
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| Aikido |
A martial arts style created by Uyeshiba Morihei in the 1930's. The style is based on Aikijutsu. Aikido is considered a non-aggressive style as the primary focus is utilizing the opponents' energy against them.
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| Aikijutsu |
Translates as "technique of harmonious spirit", and is derived from a branch of ancient jujutsu, from which aikido was developed.
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| Aite |
An opponent, adversary, or sparring partner.
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| Aiuchi |
Translates as "mutual striking down or simultaneous point", and refers to a simultaneous score by both competitors during the sporting aspect of Japanese martial arts.
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| Antei |
Equilibrium, stability, center of gravity, or balance.
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