The Japanese word for teacher is Sensei. The founder of Aikido, Mr Ueshiba, is known as O Sensei or great teacher.
On the mat, the instructor is referred to as Sensei.
Etiquette
At the beginning of class we bow to O Sensei, then bow to Sensei and say “o ne gai shi mas”, which means ‘please’ - in this context ‘please practice’. At the end of class we bow to O Sensei, then bow to Sensei and say “domo arigato gozaimashita” which is a very polite ‘thank you’ (generally, the longer a phrase is the more polite it is).
When practising with a partner we bow to each other before and after training together.
Bowing in the dojo is used to show respect to the memory of the founder of Aikido, to the instructor and to fellow Aikidoka (practitioners of Aikido). It is not to be construed as an act of worship.
Tori the person performing the technique
Uke the person receiving the technique (usually the attacker)
Posture
Kamae posture (general)
Hanmi half body posture
Migi right foot forward
Hidari left foot forward
Tai Sabaki (body movement)
Irimi entering body (step forward)
Tenkan (pivot on the front foot)
Tsugi ashi following feet (move the front foot forward, draw the rear foot up behind)
Ukemi (receiving body) break falls
Mae forwards
Ushiro backwards
Yoko sideways
Shikko knee walking
Introduction to techniques
An Aikido technique is described by the attack, followed by the name of the technique. Sometimes it is specified whether the technique should be sitting or standing.
Most techniques have two forms, omote (positive, irimi) and ura (negative, tenkan).
When practising in pairs it is usual for one person to perform the technique four times (omote, right and left; ura, right and left), then the other person to perform the technique four times.
Suwariwaza sitting techniques
Tachi waza standing techniques
Hanmi handachi sitting technique, standing attack
Attacks
Katatedori wrist held by one hand
Aihanmi (agreeing posture) right takes right or left takes left
Gyakuhanmi right takes left or left takes right
Katadori shoulder holding
Ryotedori ryotemochi both wrists held
Morotedori one wrist held by two hands
Shomenuchi vertical cut down
Yokomenuchi diagonal cut down
Tsuki punch
Jo dan upper level (punch to face)
Chu dan middle level (punch to the knot on the belt)
Ge dan lower level (!)
Ushiro behind
Techniques
Ikkyo first technique (circling arm)
Nikyo second technique (painful wrist twist)
Sankyo third technique (turning wrist and forearm)
Yonkyo fourth technique (cutting forearm while applying pressure to a nerve)
Gokyo fifth technique (applied to the wrist)
Rokkyo sixth technique (applied to the elbow)
Iriminage entering body throw
Ko te gae shi little hand turn
Shi ho nage four direction throw
Kai ten nage body turn throw
Uchi inside (under)
Soto outside
Weapons
Jo stick
Bokken wooden sword
Tanto wooden knife
Aikido Concepts
Tegatana (hand blade) the edge of the arm from the base of the little finger to the forearm
Ki energy
Tanden centre, point below the navel which is the centre of ki
Kokyuho breath power
Atemi strike to distract ukei
Ma ai distance, space or being in the right place at the right time
Zanshin finishing, spirit at the end of the technique
Counting
Numbers are regular, once you know one to ten you can go all the way to 99. The exception is 4 which can be pronounced either shi (shi ho nage) or yon (yon kyo).
1 Ichi
2 Ni
3 San
4 Shi (or Yon)
5 Go
6 Rokkyu
7 Shichi
8 Hachi
9 Kyu
10 Ju