- Insurance. a fire deliberately set and remaining contained, as in a fireplace or boiler, from which any resulting loss cannot be claimed as an insurance liability (opposed to hostile fire).
- (in military combat) fire, as by artillery, by one's own forces, especially when causing damage near or casualties to one's own troops.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- military firing by one's own side, esp when it harms one's own personnel