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US Army
GA: General of the Army
GEN: General
LTG: Lieutenant General
MG: Major General
BG: Brigadier General
COL: Colonel
LTC: Lieutenant Colonel
MAJ: Major
CPT: Captain
1LT: First Lieutenant
2LT: Second Lieutenant
CW5: Chief Warrant Officer 5
CW4: Chief Warrant Officer 4
CW3: Chief Warrant Officer 3
CW2: Chief Warrant Officer 2
WO1: Warrant Officer 1
SMA: Sergeant Major of the Army
CSM: Command Sergeant Major
SGM: Sergeant Major
1SG: First Sergeant
MSG: Master Sergeant
SFC: Sergeant First Class
SSG: Staff Sergeant
SGT: Sergeant
CPL: Corporal
SPC: Specialist
PFC: Private First Class
PV2: Private E2
PV1: Private E1
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US Air Force (USAF)
GOAF: General of the Air Force
Gen: General
Lt Gen: Lieutenant General
Maj Gen: Major General
Brig Gen: Brigadier General
Col: Colonel
Lt Col: Lieutenant Colonel
Maj: Major
Capt: Captain
1stLt: First Lieutenant
2ndLt: Second Lieutenant
CMSAF: Chief Master Sergeant of the Air Force
CCMS: Command Chief Master Sergeant
CMSgt: Chief Master Sergeant
SMSgt: Senior Master Sergeant
MSgt: Master Sergeant
TSgt: Technical Sergeant
SSgt: Staff Sergeant
SrA: Senior Airman
A1C: Airman First Class
Amn: Airman
AB: Airman Basic
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US Navy (USN)
FADM: Fleet Admiral
ADM: Admiral
VADM: Vice Admiral
RADM: Rear Admiral (uh)
RDM: Rear Admiral (Ih)
CAPT: Captain
CDR: Commander
LCDR: Lieutenant Commander
LT: Lieutenant
LTJG: Lieutenant Junior Grade
ENS: Ensign
CWO5: Chief Warrant Officer 5
CWO4: Chief Warrant Officer 4
CWO3: Chief Warrant Officer 3
CWO2: Chief Warrant Officer 2
MCPON: Master Chief Petty Officer of the Navy
FLTCM: Fleet Master Chief Petty Officer
FORCM: Force Master Chief Petty Officer
CMCPO: Command Master Chief Petty Officer
MCPO: Master Chief Petty Officer
SCPO: Senior Chief Petty Officer
CPO: Chief Petty Officer
PO1: Petty Officer First Class
PO2: Petty Officer Second Class
PO3: Petty Officer Third Class
SN: Seaman
SA: Seaman Apprentice
SR: Seaman Recruit
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US Marine Corps (USMC)
Gen: General
LtGen: Lieutenant General
MajGen: Major General
BGen: Brigadier General
Col: Colonel
LtCol: Lieutenant Colonel
Maj: Major
Cpt: Captain
1stLt: First Lieutenant
2ndLt: Second Lieutenant
CWO5: Chief Warrant Officer 5
CWO4: Chief Warrant Officer 4
CWO3: Chief Warrant Officer 3
CWO2: Chief Warrant Officer 2
WO1: Warrant Officer 1
SgtMajMC: Sergeant Major of the Marine Corps
SgtMaj: Sergeant Major
MGySgt: Master Gunnery Sergeant
1stSgt: First Sergeant
MSgt: Master Sergeant
GySgt: Gunnery Sergeant
SSgt: Staff Sergeant
Sgt: Sergeant
Cpl: Corporal
LCpl: Lance Corporal
PFC: Private First Class
Pvt: Private
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US Coast Guard
ADM: Admiral
VADM: Vice Admiral
RADM: Rear Admiral (uh)
RAML: Rear Admiral (lh)
CAPT: Captain
CDR: Commander
LCDR: Lieutenant Commander
LT: Lieutenant
LTJG: Lieutenant Junior Grade
ENS: Ensign
W-4: Chief Warrant Officer 4
W-3: Chief Warrant Officer 3
W-2: Chief Warrant Officer 2
MCPOCG: Master Chief Petty Officer of the Coast Guard
MCPOCGR: Master Chief Petty Officer of the Coast Guard Reserve
CMC: Command Master Chief Petty Officer
MCPO: Master Chief Petty Officer
SCPO: Senior Chief Petty Officer
CPO: Chief Petty Officer
PO1: Petty Officer First Class
PO2: Petty Officer Second Class
PO3: Petty Officer Third Class
SN: Seaman
SA: Seaman Apprentice
SR: Seaman Recruit