opposite; reversed in order or relation; reciprocal
Free verbal interchange of thoughts or views; conversation; chat.
The opposite or reverse.
One of a pair of terms that name or describe a relationship from opposite perspectives; converse antonym; relational antonym.
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.".
To keep company; to hold intimate intercourse; to commune.
To talk; to engage in conversation.
Having the order or direction changed; for example turned upside down, reversed or in any other way opposite or contrary.
(of a chord) Having the lowest note transposed an octave higher.
(of sugar) Having its polarization changed by hydrolysis; see invert sugar.