A more thorough explanation:

Definition: A guildhall is a building that serves as the meeting place for a guild or the chief hall of a city used for holding court and meetings of the municipal corporation.

Example: In medieval times, guilds were organizations of craftsmen or merchants who worked in the same trade. They would meet in a guildhall to discuss business matters and make decisions that affected their trade. For example, the London Guildhall was the headquarters of the City of London Corporation and was used for official functions such as banquets, receptions, and meetings.

Explanation: The example illustrates how a guildhall was used as a meeting place for a guild. It also shows how the London Guildhall was used as the chief hall of the city for official functions. The guildhall was an important part of medieval society and played a significant role in the organization of trade and commerce.