A conversation or discussion between people. We had a long talk about our future plans.
A formal speech or lecture. The professor gave an interesting talk on climate change.
There was a lot of talk about the new couple in town.
The talk of the town was the upcoming festival.
Negotiations or informal discussions intended to reach agreement. The peace talks will resume next week.
Language, discourse, or terminology characteristic of a particular group, occupation, or subject area. I couldn't understand the medical talk the doctors were using.