0 past simple and past participle of talk
2 to discuss something with someone, often to try to find a solution to a disagreement:
3 to give a lecture on a subject:
The next speaker will be talking about endangered insects.
The argument was upsetting for us all - I don't want to talk about it.
He didn't talk about his exam results in case people thought he was boasting.
Explorers were much read and talked about and their adventures were re-enacted in lecture halls, theatres, and in all manner of visual entertainments.
Young people in our focus groups talked about the kinds of music they enjoyed.
The issue of continuing the father role arose as they talked about their children.