The phrase "large crowd" refers to a group of people that is significantly large in number. It could be an unspecified or undefined amount, but it is certainly more than just a few individuals. The size of the crowd can vary greatly depending on the context and location, ranging from a small gathering to a massive assembly or event with thousands of attendees. In any case, having a large number of people present indicates that there is significant interest in whatever activity or occasion is taking place.