What does vigilant mesn?

Vigilant means "constantly on the lookout for possible danger or problems." It is derived from the Latin word "vigilare," which means "to keep watch." When someone is vigilant, they are paying close attention to their surroundings and are prepared to take action if necessary. For example, a security guard who is vigilant will be constantly scanning their surroundings for anything suspicious, and will be ready to react if they see anything out of the ordinary. Vigilance is an important quality for anyone who works in a security-related field, but it can also be beneficial in other areas of life. For example, students who are vigilant about their studies are more likely to do well in school, and employees who are vigilant about their work are more likely to be successful.