What does MEETING mean?

noun

1. a formally arranged gathering“next year the meeting will be in Chicago”
2. a small informal social gathering“there was an informal meeting in my living room”
3. a casual or unexpected convergence“he still remembers their meeting in Paris”
4. the social act of assembling for some common purpose“his meeting with the salesmen was the high point of his day”
5. the act of joining together as one“the merging of the two groups occurred quickly”
6. a place where things merge or flow together (especially rivers)“Pittsburgh is located at the confluence of the Allegheny and Monongahela rivers”