Learner's definition of CONVERSATION
1 : an informal talk involving two people or a small group of people : the act of talking in an informal way
a casual/telephone/private conversation
He mentioned it during (the course of) our conversation.
Do you remember our conversation about that new movie?
The conversation turned to music. = Music became the topic of the conversation.
We got into a long conversation about his behavior.
I had a nice conversation [=(less formally) chat] with your mother.
They were engaged in a lengthy conversation about politics.
It was so noisy that we could hardly carry on a conversation. [=talk]
a perfect spot to hold a quiet conversation [=talk]
She often strikes up conversations with strangers. [=she often talks to strangers]
The topic came up in conversation.
They were so deep in conversation that they barely noticed me.
He kept trying to engage me in conversation.
She's skilled in the art of conversation.
an interesting topic of conversation
“Where are you from?” he asked, trying to make conversation. [=start a conversation]
2 [count] : something that is similar to a spoken conversation