mid·night 
/ˈmɪdˌnaɪt/ noun
/ˈmɪdˌnaɪt/ noun [noncount] : the middle of the night : 12 o'clock at night
▪ Her parents wanted her home before midnight. ▪ The clock struck midnight. ▪ It was 12 midnight when we arrived home. — often used before another noun ▪ a midnight snack ▪ at the midnight hour [=at midnight]
▪ Her parents wanted her home before midnight. ▪ The clock struck midnight. ▪ It was 12 midnight when we arrived home. — often used before another noun ▪ a midnight snack ▪ at the midnight hour [=at midnight]
burn the midnight oil — see 1burn
