Pinan can be interpreted as Peaceful mind or Tranquillity and Nidan meaning 2nd level.
So this kata is actually the second Pinan in the series, but due to the difficulty of the 1st Pinan (Pinan Shodan), the order has been altered.
Peaceful Mind level 1 This is the first of the Pinan series but due to the difficulty of this kata the order has been changed, so this is taught as the second kata. This kata has 27 moves.
Peaceful Mind, Level 3
This is the 3rd kata in the Pinan series. A relatively short kata, containing some strange looking techniques. Applications include throwing and locking techniques.
Peaceful Mind, Level 4
The 4th kata in the Pinan series. This kata introduces obvious close range attacks such as knee and elbow strikes. Both hands are used together throughout this kata.
Peaceful Mind Level 5
The 5th and final Pinan kata in the series. Applications include throwing and locking techniques.
Ananku is a shuri-te form thought to have been brought back from Taiwan by Chotoku Kyan. This is a strong kata showing the powerful Shukokai hip twist action throughout. It comprises of both long and short-range defensive applications.
‘24 Steps’. The origin of this kata is unknown, but it is presumed that it originates from the Aragaki group like Sochin and others. This is shown through the similarity to Unsu. In introducing karate from Okinawa to Japan, Gichin Funakoshi changed the name of the kata from Niseishi to Nijūshiho. Both names mean "Twenty-Four Steps."
Sanchin is a kata of apparent Southern Chinese (Fujianese) origin that is considered to be the core of several styles. The most well-known being the Okinawan Karate styles of Uechi-Ryū and Gōjū-Ryū, as well as the Chinese martial arts of Fujian White Crane, Five Ancestors, Pangai-noon and the Tiger-Crane Combination style associated with Ang Lian-Huat. Tam Hon taught a style that was called simply "Saam Jin" (Cantonese for "Sanchin"). The name Sanchin, meaning three battles/conflicts/wars is usually interpreted as the battle to unify the mind, body, and spirit; however, there are other interpretations.
Kosokun is the rank of a Chinese envoy who visited Okinawa and displayed some martial arts. This Kata is probably the Kata they taught. “Dai” suggests that this is the original version.
Translated as Lull in the storm or Storm in the calm or to pull and fight.
This Kata exemplifies its translation with a distinct hard and soft Yin and Yang circular slow and fast movements.
This is one of the core classical forms most practised in Karate, the styles are derived from the original Shuri or Tomari lineages.
The translation of this Kata is a mystery with a number of theories:
Nai – Inner, inside or internal
Han – Half, opposite, sideways
Meaning Eighteen Hands.
Contains many circular and powerful techniques.