What does "speaking" mean?

Speaking: Seeming to be capable of speech; hence, lifelike; as, a speaking likeness. A speaking acquaintance, a slight acquaintance with a person, or one which merely permits the exchange of salutations and remarks on indifferent subjects. -- Speaking trumpet, an instrument somewhat resembling a trumpet, by which the sound of the human voice may be so intensified as to be conveyed to a great distance. -- Speaking tube, a tube for conveying speech, especially from one room to another at a distance. -- To be on speaking terms, to be slightly acquainted.