- automatic warning system: a train safety system which gives audible warnings about the signals being passed, and can apply the brakes automatically if necessary
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for aws
When companies sign up for AWS, they choose a geographical location for their data.
Those affected Tuesday morning were clients whose data was stored at an Amazon Web Services (AWS) facility in Northern Virginia.
Austrian, aws′tri-an, adj. of or pertaining to Austria, an empire of Central Europe.
Aws ut wuz in th' beginnin', uz now awn ever shawl be, worl' wi'out end—Aamen!Little Journeys to the Homes of the Great, Vol. 2 of 14