夫妇 (fūfù) means 'married couple, husband and wife' and is a relatively formal term, often used with the classifier 对 (e.g., 一对夫妇). It is more formal than the commonly used 夫妻 (fūqī, 'husband and wife'), which appears in everyday speech and phrases like 夫妻关系. Do not confuse 夫妇 with 夫人 (fūrén, 'Mrs., lady'), a separate term for addressing a married woman.