I'm looking for single word synonyms for tête-à-tête, which express the idea of a private and intimate conversation. I wasn't able to find any.
Aside from the entries found in the thesaurus, I might suggest:
Even though face-to-face is often used as an adjective (as in face-to-face meeting, face-to-face interview, or face-to-face instruction), face-to-face can also be used as a noun, meaning, well, tête-à-tête. Wiktionary defines face-to-face as:
Moreover, Google books shows the expression used as a noun, in instances such as:
One other suggestion I might offer – particularly if you want to stress the intimacy of the conversation – is
OneLook lists this definition:
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The normal English equivalent is heart-to-heart - an intimate talk in private; "he took me aside for a little heart-to-heart".
Unlike tete-a-tete, heart-to-heart is often followed by the word "talk".
I don't use it myself, but for an undeniably "single word" alternative, there's schmooze verb: to talk intimately and cozily; gossip. noun: a long and intimate conversation. Some may feel this word always implies ...in order to manipulate, flatter, or impress someone.