The term 'MEETING' can be abbreviated in a variety of ways. CONF is an abbreviation for 'CONFERENCE, ' which is a formal MEETING of people who have been invited to discuss a particular topic. SESS is an abbreviation for 'SESSION, ' which is a period of time during which a group of people meet to discuss a particular topic. YALTA is an abbreviation for the 1945 Yalta CONFERENCE, which was a MEETING between the leaders of the United States, the United Kingdom, and the Soviet Union to discuss the reorganization of Europe after World War II. CHAIR is an abbreviation for 'CHAIRPERSON, ' which is the person who presides over a MEETING. STOA is an abbreviation for 'stoas, ' which were public MEETING places in ancient Greece. AGORA is an abbreviation for 'agora, ' which was the central public space in ancient Greek cities where citizens would gather to discuss politics and other matters.