to exchange · exchange · communication · interaction · to have social contact (with sb)

Businesses often have a list of 5-10 'mission statements' featured in their brochures, on their websites or hanging in their office detailing the values they hold as a form of communication to their employees, their clients and the public.

Gestures are very important in human communication.

Language is the means by which people communicate with others.

My mother speaks French better than my father speaks English, so they usually speak to each other in French.

Ted was finally able to communicate his thoughts in Japanese.