Free verbal interchange of thoughts or views; conversation; chat.
The opposite or reverse
Of a proposition or theorem of the form: given that "If A is true, then B is true", then "If B is true, then A is true." equivalently: given that "All Xs are Ys", then "All Ys are Xs".
One of a pair of terms that name or describe a relationship from opposite perspectives; converse antonym; relational antonym
To talk; to engage in conversation
To keep company; to hold intimate intercourse; to commune; followed by with
To have knowledge of (a thing), from long intercourse or study
Opposite; reversed in order or relation; reciprocal