1.a formally arranged gathering;
next year the meeting will be in Chicago
2.the social act of assembling for some common purpose;
his meeting with the salesmen was the high point of his day
3.a small informal social gathering;
there was an informal meeting in my livingroom
4.a casual or unexpected convergence;
he still remembers their meeting in Paris
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