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Goodbye, farewell, or see you later
さようなら、先生
Goodbye, teacher
A formal way to bid farewell, often used when parting ways for an extended period
See you later
またね、さようなら
See you later, goodbye
An informal way to say goodbye to someone you expect to see again soon
Use さようなら when parting ways for an extended period, especially in formal situations or when speaking to someone you don't know very well.
The word さようなら is believed to have originated from the phrase 'さようならば', which is a more polite way of saying 'sayounara', meaning 'goodbye' or 'farewell'.
Use さようなら when you want to bid a formal or semi-formal farewell. For close friends or family, you can use more casual expressions like 'またね' (mata ne) or 'じゃね' (ja ne).