Aikido terminology

Here’s a list of the commonest Japanese terms used in aikido practice. (See also Wikipedia.)

Courtesy (礼 rei)
お願いします Onegai shimasu Please [practise with me]
どうも ありがとうございました Dōmo arigatō gozai-mashita Thank you very much
Practice roles
取り/投げ Tori/nage Person throwing
受け Uke Person receiving
受身 Ukemi Falling/receiving
Footwork (体捌き tai sabaki ‘body movements’)
回転 Kaiten Turning (change direction)
転換 Tenkan Turning (slip, turn)
入身転換 Irimi tenkan Entering tenkan (step, turn)
膝行 Shikkō Knee walking
Directions
左, 右 Hidari, migi Left, right
前, 後 Mae, ushiro Front, behind
内, 外 Uchi, soto Inside, outside
表, 裏 Omote, ura Facing front, turning to rear
上段, 中段, 下段 Jōdan, chūdan, gedan Upper, middle, lower
Stances
半身 Hanmi Basic stance
逆半身 Gyaku hanmi Opposite stances (one person with left foot in front, one right)
合半身 Ai hanmi Matching stances (both left or right)
Categories of technique
立ち技 Tachi waza Standing techniques
座り技 Suwari waza Sitting techniques
半身半立ち技 Hanmi handachi waza One seated, one standing techniques
自由技 Jiyu waza Free techniques
変化技 Henka waza Variation/changing techniques
返し技 Kaeshi waza Reversal techniques
Attacks (grabs and strikes)
片手取り Katate dori One hand grab (either ai hanmi or gyaku hanmi
交差取り Kōsa dori Cross grab (= ai hanmi katate dori)
両手取り Ryōte dori Both hands grabbing (two grabbing two)
諸手取り Morote dori Both hands grabbing one
肩取り Kata dori Shoulder grab
正面打ち Shōmen uchi Strike (uchi) to front of head
横面打ち Yokomen uchi Strike (uchi) to side of head
突き Tsuki Straight punch
Pinning and throwing techniques
一教, 二教, 三教, 四教, 五教 Ikkyō, nikyō, sankyō, yonkyō, gokyō First, second, third, fourth, fifth teaching (pinning techniques)
入身投げ Irimi nage Entering throw
四方投げ Shihō nage Four-direction (under-arm) throw
小手返し Kotegaeshi Wrist-reversing (throw)
天地投げ Tenchi nage ‘Heaven and earth’ throw
回転投げ Kaiten nage Wheel throw
呼吸投げ Kokyū nage ‘Breath’ throw
腰投げ Koshi nage Hip throw