To function in harmony, side by side
To work or act together, especially for a common purpose or benefit.
To allow for mutual unobstructed action
To engage in economic cooperation.
To nullify
To prevent (something) from being achieved.
To reduce, to nothing, the strength of.
To overcome in battle or contest.
The act or instance of being defeated, of being overcome or vanquished; a loss.
Frustration (by prevention of success), stymieing; (law) nullification.
The act or instance of defeating, of overcoming, vanquishing.