Maai

Maai (間合い), translating simply "interval", is a Japanese martial arts term referring to the space between two opponents in combat; formally, the "engagement distance".

The concept of maai incorporates not just the distance between opponents, but also the time taken to cross the distance and the angle and rhythm of attack; collectively, these all factor in to the exact position from which one opponent can strike other – e.g., a faster opponent's maai is farther away than a slower opponent.

It is ideal for one opponent to maintain maai while preventing the other from doing so, meaning that they can strike before the opponent can, rather than both striking simultaneously, or being struck without being able to strike back.