遵命 is a formal, polite verb-object compound meaning 'to obey a command' or 'to comply with instructions'. It is often used as a respectful response to a superior, equivalent to 'Yes, sir!' or 'As you command.' As a separable verb (离合词), 遵 and 命 can be split when inserting aspect markers (了, 过), measure words, or other elements — for example, 遵了你的命 ('obeyed your order').