Definition of 'on alert'
Example sentences containing 'on alert'
The world had been put on alert and the world watched with the keenest of eyes.The Sun (2012)
The police were put on alert.Times, Sunday Times (2010)
All units in Iraq were put on alert.Times, Sunday Times (2006)
Museums and galleries have been placed on alert after a police warning of a specific threat from criminals planning to steal precious objects.Times, Sunday Times (2015)
British tourism and farming should be boosted and Government departments have been put on alert for the possibility of a heatwave.The Sun (2009)
Top display put Celtic on alert.The Sun (2013)
Fighter jets were put on alert when the co-pilot became suspicious of a foreign passenger the captain asked to raise the alarm.The Sun (2011)
The tourists picked the wrong city in which to leap into a fountain after a string of similar incidents outraged Romans and put police on alert.Times, Sunday Times (2015)
And he could get his wish next month, with a host of top clubs on alert as the January transfer window approaches.The Sun (2012)
Definition of on alert from the Collins English Dictionary
We take a look at the etymology behind the word 'election' on the run up to the UK General Election in June
Language expert Ian Brookes looks at the word 'election' and its origins.
Join the Collins community
All the latest wordy news, linguistic insights, offers and competitions every month.