intercourse

Dealings or communications between persons or groups.

Sexual intercourse.

Communication between persons or places; frequent or habitual meeting or contact of one person with another, or of a number of persons with others, in conversation, trade, travel, etc.; physical interchange; reciprocal dealing.

Mental or spiritual interchange; reciprocal exchange of ideas or feelings; intercommunion.

A commingling; intimate connection or dealings between persons or nations, as in common affairs and civilities, in correspondence or trade; communication; commerce; especially, interchange of thought and feeling; association; communion.