出 (chū) is a versatile verb meaning 'go out, come out, produce, happen.' It often appears before or after other verbs to show direction or result (e.g., 出来 'come out', 出去 'go out'). Unlike the specific directional verbs 出来/出去, 出 alone can mean both 'go out' and 'come out' depending on context, and it also covers broader senses like 'produce' or 'occur' (vs. 发生, which is more formal for events).