The noun 会议 (huìyì) means "meeting," "conference," or "session." It is a formal term used for organized gatherings where topics are discussed or decisions are made. Common compounds include 电话会议 (conference call) and 新闻发布会议 (press conference).
明天下午两点有一个重要的会议。
Míngtiān xiàwǔ liǎng diǎn yǒu yīgè zhòngyào de huìyì.
There is an important meeting tomorrow afternoon at two o'clock.
这次会议讨论了公司未来的发展方向。
Zhè cì huìyì tǎolùnle gōngsī wèilái de fāzhǎn fāngxiàng.
This meeting discussed the company's future development direction.
因为会议延长了,我没赶上火车。
Yīnwèi huìyì yánchángle, wǒ méi gǎnshàng huǒchē.
Because the meeting ran over, I missed the train.