"Converse" is a word in LAW AND LEGAL, ENGLISH

The transposition of the subject and predlcate in a proposition, as: “Everything is good in its place.” Converse, “Nothing is good which is not in its place." wharton

To keep company; to hold intimate intercourse; to
commune; -- followed by with.

To have knowledge of, from long intercourse or study;
-- said of things.

A proposition in which, after a conclusion from something
supposed has been drawn, the order is inverted, making the conclusion
the supposition or premises, what was first supposed becoming now the
conclusion or inference. Thus, if two sides of a sides of a triangle
are equal, the angles opposite the sides are equal; and the converse is
true, i.e., if these angles are equal, the two sides are equal.

To engage in familiar colloquy; to interchange
thoughts and opinions in a free, informal manner; to chat; -- followed
by with before a person; by on, about, concerning, etc., before a
thing.

Turned about; reversed in order or relation; reciprocal;
as, a converse proposition.

Familiar discourse; free interchange of thoughts or
views; conversation; chat.

A proposition which arises from interchanging the terms
of another, as by putting the predicate for the subject, and the
subject for the predicate; as, no virtue is vice, no vice is virtue.

Frequent intercourse; familiar communion; intimate
association.