| Ichi | One |
| Ni | Two |
| San | Three |
| Shi (or yon) | Four |
| Go | Five |
| Roku | Six |
| Shichi (or nana) | Seven |
| Hachi | Eight |
| Kyu (or ku) | Nine |
| Ju | Ten |
| Ai | Harmonising. |
| Aiki | Harmonising of Ki. |
| Aikidoka | One who participates in Aikido. |
| Bokken | Sword. |
| Chudan | Middle position. |
| Dachi | Stance. |
| Do | The Way. |
| Dojo | Training hall. |
| Doshu | Leader of the way, world Aikido leader, head of budo. |
| Gedan | Lower position. |
| Hajime | Begin. |
| Hanmi | The basic aikido stance, half body, as in facing forward with left or right foot forward. |
| Hara | One point (lower abdomen, approximately 50mm below navel) physical & spiritual center. |
| Hidari | Left. |
| Jiyu waza | Free style practice. |
| Jo | Staff. |
| Jodan | Upper position. |
| Ki | Vital force of Mind, Body and Spirit. |
| Kohai | Junior. |
| Kumi jo | Staff practices with a partner. |
| Kumi tachi | Sword practices with a partner. |
| Kyu | Kyu grade students, before reaching Dan grade. |
| Ma ai | Attack intervals. One must keep the proper attack intervals. |
| Matte | Stop. |
| Metsuke | Gazing at the distant mountains. This means to focus the eyes at a distance. |
| Migi | Right. |
| Nage | The person performing the technique. |
| O'Sensei | "The Great Teacher", Founder of Aikido - The Late Morihei Ueshiba. |
| Rei | To bow. |
| Seiza | Formal kneeling position. |
| Sempai | Senior. |
| Sensei | Teacher, instructor. |
| Shihan | Master, instructor (6th Dan & above). |
| Shomen | Front of a dojo, often there is a photo of the Founder, also front or top of head. |
| Tanto | Knife. |
| Tatami | Japanese straw mat. |
| Uke | The person receiving the technique. |
| Ukemi | The way of receving techniques. |
| Waza | Technique. |
| Yame | Finish. |
| Yudansha | Dan grade students. |
| Zanshin | Remaining mind or heart. Even after an aikido technique has been completed, one should remain in a balanced and aware state. |
| Ayumi ashi | Altering step, left and right, like normal walking. |
| Funakogi undo | Rowing boat exercise, standing up. |
| Hai shin undo | Back stretch. |
| Hidari | Left. |
| Irimi | Entering move. |
| Kaiten | Rotation move or turning move. |
| Mae ukemi | Front roll or break-fall. |
| Migi | Right. |
| Okuri ashi | Sliding step, front leg slide and back leg follow. |
| Shiho giri | Cutting in four directions. |
| Shikko | Knee walk. |
| Soto | Outside. |
| Tai no tenkan | Body turns. |
| Tenkan | Turning move or changing direction. |
| Tsugi ashi | Following step, back foot following and not passing front foot. |
| Uchi | Inside. |
| Ukemi | General term for break-fall techniques. |
| Ushiro ukemi | Back roll or break-fall. |
| Ai hanmi | Same foot forward stance. |
| Atemi | Strike. |
| Eri dori | Collar grip by the neck. |
| Gyaku hanmi | Opposing stance. |
| Hanmi handachi | Nage kneels, uke standing. |
| Hiji dori | Elbow grab. |
| Jo tori | Defense against Jo attacks. |
| Kamae | Stance. |
| Kata dori | Shoulder grab. |
| Kata men uchi | Shoulder grab and execute a straight frontal strike to the top of the head with the other hand. |
| Katame waza | Immobilization techniques. |
| Katate dori | Wrist grab. |
| Mae geri | Front kick. |
| Morote dori | Both hands grab partner's wrist. |
| Mune tsuki | Thrust, straight punch to chest or stomach. |
| Omote | Positive move, entering to the front of the partner. |
| Ryo hiji dori | Two hands grab both of the partner's elbows. |
| Ryo kata dori | Two hands grab both of the partner's shoulder. |
| Ryote dori | Two hands grab both of the partner's wrists. |
| Shomen tsuki | Thrust, straight punch to the face. |
| Shomen uchi | Straight strike to the top of the head. |
| Suwari waza | Knee techniques. |
| Tachi tori | Defense against Bokken attacks. |
| Tachi waza | Standing techniques. |
| Taiho jutsu | Arrest techniques. |
| Tanto tori | Defense against Tanto attacks. |
| Ura | Negative move, entering to the rear or behind of the partner. |
| Ushiro | From the rear or behind. |
| Ushiro hiji dori | Two hands grab from behind both of the partner's elbow. |
| Ushiro kubi shime | Rear or neck choke with one hand from behind and grab at the wrist with the other hand. |
| Ushiro ryo kata dori | Two hands grab from behind both of the partner's shoulder. |
| Ushiro ryote dori | Two hands grab from behind both of the partner's wrists. |
| Yokomen uchi | Strike to the side of the head or neck. |
| Ikkyo | 1st immobilisation lock. |
| Nikyo | 2nd immobilisation lock. |
| Sankkyo | 3rd immobilisation lock. |
| Yonkyo | 4th immobilisation lock. |
| Gokyo | 5th immobilisation lock. |
| Irimi nage | Entering throw. |
| Juji garumi | Crossed arm throw. |
| Kaiten nage | Rotary throw. |
| Kokyu nage | Breath throw. |
| Kokyu-ho | Method for using breath. |
| Koshi nage | Hip throw. |
| Kote gaeshi | Wrist throw or outer wrist twist. |
| Shiho nage | Four directions throw. |
| Sumi otoshi | Corner drop throw. |
| Tenchi nage | Heaven and Earth throw. |