The word 问候 (wèn hòu) literally combines 问 (wèn), meaning 'to ask' or 'to inquire', and 候 (hòu), which originally meant 'to wait for' or 'to observe the condition of someone'. Together, they form a formal, respectful verb meaning 'to greet' — especially in written or ceremonial contexts — or 'to send regards' to someone, often implying care or concern for their well-being. It's commonly used in letters, emails, holiday messages, or when visiting elders or people who are unwell.

Unlike casual greetings like 你好 (nǐ hǎo), 问候 carries warmth and intentionality — it’s less about initiating conversation and more about expressing goodwill, respect, or empathy. You might 问候 a teacher at the start of a semester, 问候 a friend recovering from surgery, or 问候 family members during Spring Festival. It’s rarely used as a standalone spoken greeting but appears frequently in phrases like 致以问候 (zhì yǐ wèn hòu, 'extend greetings') or 亲切问候 (qīn qiè wèn hòu, 'warm regards').