Warning

Etymology

Middle English, from Old English warnian; akin to Old High German warnōn to take heed, Old English wær careful, aware

• Date: before 12th century

Definitions

• 1 a : to give notice to beforehand especially of danger or evil

b : to give admonishing advice to : counsel

c : to call to one's attention : inform

2 : to order to go or stay away —often used with off

Description

A warning system is any system of biological or technical nature deployed by an individual or group to inform of a future danger. Its purpose is to enable the deployer of the warning system to prepare for the danger and act accordingly to mitigate against or avoid it.