- Aiki-jô — staff
- Aiki-ken — sword
- Arigato gozaimashita — thank you (past tense)
- Arigato gozaimasu — thank you (present tense)
- Ayumi-ashi irimi — striding irimi
- Bokken — wooden sword
- Dojo — martial art practice area
- Funakogi undô — boat rowing exercise
- Furutama undô — breathing exercise
- Gokyô — fifth basic pin
- Hanmi — basic triangular stance
- Hanmi-handachi — attacker (uke) standing, defender (nage) sitting
- Happô — eight directions
- Happô-giri — eight directional cutting
- Happô-undô — eight directional exercise
- Henka-waza — turning one technique into another
- Ikkyô — first basic pin
- Ikkyô-undô — basic exercise
- Irimi — entering principle
- Irimi-nage — basic throw
- Jô — short staff
- Jô-tori — unarmed defense against a jô
- Kaeshi — reversal or counter
- Kaeshi-waza — counter techniques
- Kaiten — roll, spin
- Kaiten-nage — basic throw
- Kata — shoulder
- Kata-tori — shoulder grab
- Kata-tori men-uchi — shoulder grab and strike to head
- Katate-tori — one-handed grab to wrist
- Ki — universal life force
- Kiza — mobile seated position (on your toes with knees on the ground)
- Kokyû — breath, breathing
- Kokyû-hô — breathing and centering technique
- Kokyû-nage — breath throw
- Koshi-nage — hip throw
- Kote — back of the hand
- Kote-gaeshi — basic throw
- Kubi — neck, head
- Kubi-nage — head throw
- Kôhô kaiten — backward roll
- Mawari — rotation, surroundings
- Morote-tori — two-handed grab to wrist
- Musubi — binding, continuous contact
- Nage — defender (applies aikido technique)
- Nikyô — second basic pin
- Omote — front
- Onegai shimasu — if you please
- Randori — freestyle
- Rei — bow
- Ryôte-tori — grabbing both wrists
- Sankyo — third basic pin
- Seika-tanden — center of the body
- Seiza — formal seated position, kneeling
- Shihô — four directions
- Shihô-nage — basic throw
- Shômen-uchi — strike to front of head
- Suwari-waza — seated techniques
- Suwaru — to sit
- Tachi — live sword, standing
- Tachi-tori — defense against a sword
- Tachi-waza — standing technique
- Tantô — short knife
- Tekubi — wrist
- Tenchi-nage — standing throw
- Tenkai — 180 degree pivot in place
- Tenkan — 180 degree pivot with tenshin (a step back from one hanmi into its opposite), circular principle
- Tenshin — a step back from one hanmi into its opposite
- Tsugi-ashi irmi — sliding irmi
- Tsuki — punch or thrust
- Uchi — inner
- Uke — attacker (receiver of the aikido technique)
- Ukemi — receiving with the body
- Ushiro — behind
- Ushiro kubi-jime — choke hold from behind
- Ushiro ryôkata-tori — shoulders grabbed from rear
- Ushiro ryôte-tori — wrists grabbed from rear
- Ushiro ryôtekubi-tori — same as ushiro ryote-tori
- Waza — technique
- Yoko — side
- Yokomen — side of head
- Yokomen-uchi — strike to side of head
- Yonkyô — fourth basic pin
- Zenpô-kaiten — forward roll