欢迎！

You can use it exactly like the English word 'Welcome.' Use it as a standalone exclamation when someone knocks on your door. You can also double it up as huānyíng huānyíng to sound extra enthusiastic. If you want to be specific, add the place after it. For example, huānyíng lái dào zhōngguó means 'Welcome to China.' It is a very flexible building block for polite conversation.

Use it when you are the host. This applies to your home, your office, or even your country. If a friend visits your new apartment, shout it out! If you are a waiter, say it as customers walk in. It is also great for welcoming someone to a group chat. It sets a friendly tone immediately. It is the ultimate 'ice-breaker' for arrivals.

Do not use it if you are the one arriving. That would be like walking into a party and welcoming yourself. A bit awkward, right? Also, avoid using it for 'You're welcome' after someone says thank you. For that, you need bù kèqi. Using huānyíng there will leave the other person looking for a door to enter. It is strictly for arrivals, not gratitude.

Hospitality is a massive deal in Chinese culture. Welcoming guests is seen as a reflection of your character. Historically, greeting guests properly showed respect and social standing. Today, you will hear shop staff yell it in unison. It is called 'enthusiastic service.' Sometimes it is so loud it might jump-start your heart! It shows that the host is ready and eager to serve you.

For extra politeness, you can say huānyíng guānglín. This is the 'gold standard' for shops and restaurants. It literally means 'welcome your honorable presence.' If you are at a party, you might hear huānyíng zhī zhì. That is a bit more 'fancy' and formal. For your best friend, a simple, energetic huānyíng! with a big wave is perfect. You can even use it sarcastically if a friend is late, but use that one carefully!