ミッドナイトalso: ミットナイトミッドナイトCommon word›Freq.FrequencyTop 50,000Meanings1nounmidnightEnglish loanword used in Japanese for the time 12:00 AM or the middle of the night, often in compound words or names.ミッドナイトまで起おきているのは久ひさしぶりだ。It's been a while since I stayed up until midnight.