Let’s look at other ways of saying goodbye.

Words

내일 - tomorrow ( Noun )

오늘 - today ( Noun )

Phrases

안녕히 가세요 - bye ( Honorific (시) )

잘 가 - bye ( Informal casual )

다음에 뵙겠습니다 - See you next time! ( Formal polite )

내일 뵙겠습니다. - See you tomorrow. ( Formal polite )

다음에 봐~ - See you next time! See you! ( Informal casual )

내일 봐 - See you tomorrow. ( Informal casual )

연락할게 - I will contact you ( Informal casual )

전화할게 - I will call you ( Informal casual )

문자할게 - I will message you ( Informal casual )

연락할게요 - I will contact you. ( Informal polite )

전화할게요 - I will call you ( Informal polite )

문자할게요 - I will message you ( Informal polite )