📖 Glossary of U.S. Navy Terms & Abbreviations (1940–2010)

 

USS Harry S. Truman (CVN 75) Swiftly Cuts Through the Water Off the North Carolina Coast While Conducting Tailored Ship’s Training Availability Two (TSTA II) and Cycle Operations (CYCLIC OPS). Photo by: Jeffrey G. Katz.

USS Harry S. Truman (CVN 75) Swiftly Cuts Through the Water Off the North Carolina Coast While Conducting Tailored Ship’s Training Availability Two (TSTA II) and Cycle Operations (CYCLIC OPS). Photo by: Jeffrey G. Katz. | GGA Image ID # 234f1e1634

 

This glossary explains common U.S. Navy terms and abbreviations found in GG Archives cruise books, rosters, and training materials. Where relevant, entries include carrier-specific context.

Jump to letter:

A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T · U · V · W · X · Y · Z

 

A

  • A-School — Technical training after boot camp; prepares sailors for a specific rating.
  • Arresting Gear — Cables and machinery that stop landing aircraft on a carrier.
  • ASW — Anti-Submarine Warfare; tactics, sensors, and aircraft/systems for sub hunting.

 

B

  • Berthing — Sleeping quarters aboard ship.
  • Boat vs. Ship — Tradition: “boats” can be carried by “ships”; subs colloquially called “boats.”
  • BT — Boiler Technician (merged into MM in 1997).

 

C

  • CAG — Commander, Air Group (pre-1963); later CVW Commander (title change, nickname persists).
  • CATOBAR — Catapult Assisted Take-Off, Barrier/Arrested Recovery (carrier launch/recovery method).
  • CIC — Combat Information Center; tactical/radar nerve center of the ship.
  • CO — Commanding Officer; ultimate authority aboard ship.
  • Chief’s Mess — Community/space for Chiefs (CPO/SCPO/MCPO); leadership hub.

 

D

  • Division — Work unit within a department (e.g., “V-2 Division” in Air Dept.).
  • DS — Deep draft Surface ship (contextual; also historical Data Systems Tech rating).

 

E

  • Enlisted Rate/RatingRate=paygrade (e.g., PO2); Rating=job specialty (e.g., YN).
  • EW — Electronic Warfare; also former Enlisted rating (now integrated).

 

F

  • Flight Deck Jersey ColorsYellow=Direct aircraft; Green=Catapults/Arresting/maintenance; Red=Ordnance/Crash & Salvage; Purple “Grapes”=Fuel; Blue=Plane handlers; Brown=Plane captains.

 

G

  • GQ — General Quarters; battle stations.

 

H

  • Hangar Deck — Enclosed deck where aircraft are stored/maintained.
  • Handler — Aircraft handler; coordinates aircraft movement on deck/hangar.

 

I

  • ISR — Intelligence, Surveillance, Reconnaissance.

 

L

  • LSO — Landing Signal Officer; guides carrier landings (paddles historically; optical systems later).

 

M

  • Mini Boss — Deputy to the Air Boss in Pri-Fly; assists with launches/recoveries.
  • MM — Machinist’s Mate; propulsion/engineering (absorbed BT in 1997).

 

N

  • NEC — Navy Enlisted Classification; skill identifier layered onto a rating.
  • NSN — National Stock Number; standardized supply identifier.

 

O

  • Ops — Operations; mission planning/execution functions and departments.
  • OS — Operations Specialist; successor to Radarman (RD) after 1970s reclassification.

 

P

  • Pri-Fly — Primary Flight Control; where Air Boss/Mini Boss control flight operations.
  • PN → YN — Personnelman merged into Yeoman in 2005.

 

R

  • RD → OS — Radarman retitled Operations Specialist (1970s).
  • Rate/Rating — See “Enlisted Rate/Rating.”

 

S

  • Strike Group — Carrier-centered task organization (CSG) with escorts/support.
  • SCPO — Senior Chief Petty Officer.

 

T

  • Task Force 77 — Cold War/Vietnam carrier task force in the Pacific.

 

W

  • Watch Bill — Duty schedule assigning personnel to specific watches (time blocks).
  • WestPac — Western Pacific deployment (e.g., 1960–61).

 

X

  • XO — Executive Officer; second-in-command to CO; runs daily operations.

 

Y

  • YN — Yeoman; administration/correspondence/records.

 

Z

  • “Zulu” — NATO phonetic for the letter Z; also Zulu Time = UTC (contextual).

 

Reference: For detailed billets and career context, see Ranks, Ratings & Roles (1940–2010) and Carrier-Specific Roles. Pair glossary terms with Navy on Film for visual examples.

 

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Need help with abbreviations? See our guide to U.S. Navy ranks, rates, and ratings: Ranks & Ratings Guide .
Editorial note: Names are standardized to modern Navy order (Rank FirstName LastName, Hometown ST). If a hometown wasn’t listed in the source, it’s omitted for clarity. U.S. states use USPS two-letter codes; non-U.S. addresses use country codes.