master-at-arms

plural masters-at-arms

1. NavyUKA warrant officer or chief petty officer responsible for discipline aboard a naval ship.

   Episode 12, The Cyclops Then he was telling us the master at arms comes along with a long cane and he draws out and he flogs the bloody backside off of the poor lad till he yells meila murder.

2. UKArmyA commissioned officer responsible for overseeing all fitness training in subordinate units.
3. NavyUSA petty officer responsible for law enforcement, antiterrorism, force protection, and expeditionary warfare.
4. An officer in a fraternal or similar organization charged with maintaining order.