The action or state of keeping careful watch for possible danger or difficulties.

The quality of being alert and aware of one's surroundings.

चौकसी

English Usage: The dog's vigilance made it an excellent guard animal.

Hindi Usage: कुत्ते की चौकसी ने उसे एक उत्कृष्ट सुरक्षा पशु बना दिया।