再见

In English, 'see you again' puts 'you' right after 'see', so learners try 再见你. But 再见 already works as a full farewell, and it does not take a person after it. If you mean 'meet you again' inside a longer sentence, use 再见到你, as in 我想再见到你. For a plain goodbye, just say 再见. “再见。” (Goodbye.) ── [《你喜欢看老电影吗？》](/read/do-you-like-old-movies#s21)

Textbooks drill 再见 because it works with teachers, clients, and strangers. In real WeChat chats, close friends often type 拜拜 or just 拜. It is like the difference between 'goodbye' and 'bye' or 'later' in English. Use 再见 with coworkers, clients, teachers, and strangers. Use 拜拜 with friends, family, and casual group chats.

English puts goodbye first, as in Goodbye, teacher. Chinese often flips it: 老师再见, 妈妈再见, 王总再见. The person or title comes before 再见, like a quick call-out. Saying 再见老师 sounds like you are waving goodbye to a teacher who is not there.