- an officer of a fraternal organization, veterans' society, or the like, empowered to maintain order, exclude unauthorized persons, etc.
- Navy. a petty officer who has various duties, such as keeping order on the ship, taking charge of prisoners, etc.
Origin of master-at-arms
Examples from the Web for master-at-arms
Historical Examples of master-at-arms
The master-at-arms and all the sentinels sunk to rise no more.Voyage of H.M.S. Pandora
The master-at-arms, who had been looking for him, told him that he was wanted on the quarterdeck.The Rival Crusoes
“Boy Rayner, the captain has sent for you into the cabin,” said the master-at-arms.From Powder Monkey to Admiral
You got drunk, sir; take him aft, master-at-arms, and put him in irons.Rattlin the Reefer
The master-at-arms resumes his station on the chest outside.The King's Own
Captain Frederick Marryat
- the senior rating, of Chief Petty Officer rank, in a naval unit responsible for discipline, administration, and police duties