in case of something
in case of
In the event of (something). In case of fire, please use the stairs. In case of severe weather, please take shelter.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
in case of something(formal) if something happens: In case of fire, leave the building by the nearest exit.
Farlex Partner Idioms Dictionary © Farlex 2017