a group of people who have come together for a particular purpose

congregation

a book, essay etc written as a dialog

conversation, debate

the act, process of consulting

asking, conference

a confidence of members of a business, club, political party etc

conference

the process of entertaining or being entertained

amusement, pleasure

a religious anniversary or festival, e.g. Christmas; a splendid meal

banquet and celebration

the act of rejoicing, being merry and gay; joyful celebrations

celebration, revelry

a pleasure trip in which food is carried to be eaten outdoors

outdoor meal

a large public gathering for a political or social cause; (in tennis) an exchange of several strokes

celebratory meeting

(of workers, students etc) to sit down in a factory, building etc and refuse to leave (as a protest)

congregation