Converse

noun

Free verbal interchange of thoughts or views; conversation; chat.

1. To talk; to engage in conversation
2. To keep company; to hold intimate intercourse; to commune; followed by with
3. To have knowledge of (a thing), from long intercourse or study

1. The opposite or reverse
2. 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".

   All trees are plants, but the converse, that all plants are trees, is not true.

3. One of a pair of terms that name or describe a relationship from opposite perspectives; converse antonym; relational antonym

1. Opposite; reversed in order or relation; reciprocal

   a converse proposition