讲座 (jiǎngzuò) is a formal noun meaning 'lecture' or 'talk'—typically an informative presentation delivered by an expert to an audience, often in academic, professional, or public settings. The first character 讲 (jiǎng) means 'to speak' or 'to explain', emphasizing the act of verbal instruction; the second character 座 (zuò) literally means 'seat' but here functions as a measure-like noun suffix indicating a seated event or gathering—echoing the traditional image of listeners sitting attentively to hear a speaker.

This word is commonly used in universities, conferences, museums, and cultural centers. It implies structure, preparation, and authority: a 讲座 is not casual conversation but a planned, knowledge-focused event. While it can be given in person or online, it always carries a tone of seriousness and educational intent. You’ll often see it paired with verbs like 举办 (to hold), 听 (to attend), or 主讲 (to deliver).