The act of carefully watching
The condition of being alert
The citizens organized a " vigilance committee " and hanged many of the outlaws.
Vigilance and extra hot fires will have to be kept up when the thermometer falls to 34° or 35° in the parlour or conservatory.
This state of affairs did not escape the vigilance of Nebuchadrezzar.
An attempted attack on Antwerp was foiled by the vigilance of the Cardinal Infant.
In the forcing-houses, from the variable state of the weather, considerable vigilance is required in giving air.