interjection
Casual parting phrase, slightly less formal than さようなら. Used in everyday conversation.
See also: さようなら
じゃあ、また明日。さよなら！
Well then, see you tomorrow. Goodbye!
noun, noun or participle which takes 'suru', intransitive verb
Used as a noun or with する to mean bidding farewell to something, often metaphorically (e.g., a lifestyle, a habit).
独身生活にさよならする。
I say goodbye to my single life.
彼は酒にさよならした。
He said goodbye to alcohol.
noun-modifying (irregular)
farewell; final; last; game-winning
Prenominal modifier used for final events, performances, or decisive moments, especially in sports.
さよならコンサートが開かれた。
A farewell concert was held.
彼はさよならホームランを打った。
He hit a game-winning home run.