2. Fatal accident: an accident that causes someone to die
3. A decrease of military personnel or equipment
2. Newscaster: "There's been a casualty with the airliner, a wiring problem caused it to crash, killing over a hundred passengers."
3. Soldier 1: "Where's our extra ammo?"
Soldier 2: "HQ didn't send any."
Soldier 1: "Another casualty, eh?"
Also inspired the Spin-Off 'Holby City', now in it's 6th year.