Someone skilled in the art of conversations.(noun)
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Use "conversationist" in a sentence
"Richard Sharpe, the "conversationist" as he was called in London, kept a regular book of entry, in which he recorded where and before whom he had uttered severally his choice sayings."
"It will have been perceived that Miss Fotheringay, though silent in general, and by no means brilliant as a conversationist, where poetry, literature, or the fine arts were concerned, could talk freely, and with good sense, too, in her own family circle."
"He's a conversationist who saw this devastation for himself in Indonesia."