to bring together / something brought together

large public gathering at which people perform an unusual or seemingly random act and then disperse, typically organized by means of the internet

a group under the guidance of a leader / to gather or move like a group of animals

to come together / to meet someone, usually by chance

to have a meeting with someone

to hold a session / be in session for official business

an informal social gathering

to cause to assemble

to come together, assemble again

to come together into a group, crown or assembly

an act of assembling

to form a group