Comprehensive resource for understanding and mastering English idioms
The idiom "qui vive" is French in origin and literally means "who lives". In contemporary language, it is used to greet someone with an exclamation of excitement or enthusiasm. This idiom is often used by people who are excited to see someone or who want to express their happiness upon meeting someone they haven't seen in a while.
The idiom "qui vive" is believed to have originated in the French army during the 18th century. It was used as a way for soldiers to greet each other when they were about to go into battle. The idiom would be followed by the phrase "C'est du bon" which means "It's good". This idiom was not only used in the military but also in everyday life to express excitement or enthusiasm upon meeting someone.