When two people marry, they must learn to negotiate the nature of the boundary between them, as well as the boundary separating them from the outside. This structural requirement is known as

The appropriate answer is "Accommodation ".

Explanation:

The word 'accommodation' applies to many kinds of professional relationships amongst opposing parties that make for at least limited interaction across them, while the problems that separate them continue troubled or unsettled. It still does not conclude the dispute legally but leaves something in abeyance.