Punishment

A move is punishale when your character has a move that is fast enough to hit before the enemy recovers. In older Tekken titles the fastest moves where i8 for some character and i10 for others. Tekken 6 normalized the Jab speed to i10.

i8 and i10
Also known as Jab punish. Moves that are -8 (in older games and specific characters) and -10 can be Jab punished.