Master Chief

Master chief petty officer

A master chief petty officer is a senior non-commissioned officer in some navies and coast guards, usually above some grade of petty officer.

Master Chief Petty Officer of the Coast Guard

The master chief petty officer of the Coast Guard (MCPOCG) is the senior enlisted member of the U.S. Coast Guard and the principal advisor to the commandant of the Coast Guard on all enlisted personnel matters.

Master Chief (Halo)

Master Chief Petty Officer John-117, colloquially known as the Master Chief, is the protagonist of the Halo video game series and its spin-off media. The character first appeared in the 2001 video game Halo: Combat Evolved, a science fiction first-person shooter that became a long-running franchise. The character also appears in spin-off Halo media such as the 2012 film Halo 4: Forward Unto Dawn, the 2022–2024 Halo television series, and several graphic novels and books.

master

Noun

1. Someone who has control over something or someone.
2. The owner of an animal or slave.

Adjective

1. Masterful.
2. Main, principal or predominant.

chief

Noun

1. The leader or head of a tribe, organisation, business unit, or other group. .mw-parser-output .defdate{font-size:smaller}
2. Headship, the status of being a chief or leader.

Adjective

1. Primary; principal.
2. Intimate, friendly.