How many meanings can you think of for the word ‘party’?

Watch the video, which shows several people trying to answer the following question:

How many meanings can you think of for the word ‘party’?

What are those meanings (you can give an example if you like, to explain a meaning you’ve thought of), which did you think of first, and which one do you think is the most important?

Only focus on the noun use of ‘party’ (forget about the verb), and don’t look at a dictionary.