I .
/ kənˈvɜːs; NAmE -ˈvɜːrs/ verb
[ v ] converse (with sb) ( formal ) to have a conversation with sb
II .
/ ˈkɒnvɜːs; NAmE ˈkɑːnvɜːrs/ noun
the converse [ sing. ] ( formal ) the opposite or reverse of a fact or statement :
Building new roads increases traffic and the converse is equally true: reducing the number and size of roads means less traffic.
► con·verse adjective :
the converse effect
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WORD ORIGIN
II . late Middle English : from Latin conversus turned about, past participle of convertere , from con- altogether + vertere turn.