On Definition Meaning MerriamWebsteroutfit of the night meaning is a term used to represent an attire that is worn in the night or for special occasions. represents love, emotion, and affection. Therefore, an ootn showcases an trendy and alluring attire that mirrors one's love for fashion and embraces the evening vibe. Sporting an ootn can boost one's confidence, make a statement, and exude elegance and charisma. Whether it's an glamorous dress or a chic suit, the ootn will ensure that you stand out and leave a lasting impression at any evening event.