Here are just some common abbreviations and Acronyms:

A.B.

Artium Baccalaureus [Bachelor of Arts]

abbr.

abbreviation(s), abbreviated

Acad.

Academy

A.D.

anno Domini [in the year of the Lord]

alt.

altitude

A.M.

ante meridiem [before noon]; Artium Magister [Master of Arts]

   
   

AM

amplitude modulation

Assn.

Association

at. no.

atomic number

at. wt.

atomic weight

Aug.

August

Ave.

Avenue

AWOL

absent without leave

b.

born, born in

B.A.

Bachelor of Arts

B.C.

Before Christ

b.p.

boiling point

B.S.

Bachelor of Science

Btu

British thermal unit(s)

C

Celsius (centigrade)

c.

circa [about]

cal

calorie(s)

Capt.

Captain

cent.

century, centuries

cm

centimeter(s)

co.

county

Col.

Colonel; Colossians

Comdr.

Commander

Corp.

Corporation

Cpl.

Corporal

cu

cubic

d.

died, died in

D.C.

District of Columbia

Dec.

December

dept.

department

dist.

district

div.

division

Dr.

doctor

E

east, eastern

ed.

edited, edition, editor(s)

est.

established; estimated

et al.

et alii [and others]

F

Fahrenheit

Feb.

February

fl.

floruit [flourished]

fl oz

fluid ounce(s)

FM

frequency modulation

ft

foot, feet

gal.

gallon(s)

Gen.

General, Genesis

GMT

Greenwich mean time

GNP

gross national product

GOP

Grand Old Party (Republican Party)

Gov.

governor

grad.

graduated, graduated at

H

hour(s)

Hon.

the Honorable

hr

hour(s)

i.e.

id est [that is]

in.

inch(es)

inc.

incorporated

Inst.

Institute, Institution

IRA

Irish Republican Army

IRS

Internal Revenue Service

Jan.

January

Jr.

Junior

K

Kelvin

kg

kilogram(s)

km

kilometer(s)

£

libra [pound], librae [pounds]

lat.

latitude

lb

libra [pound], librae [pounds]

Lib.

Library

long.

longitude

Lt.

Lieutenant

Ltd.

Limited

m

meter(s)

M

minute(s)

M.D.

Medicinae Doctor [Doctor of Medicine]

mg

milligram(s)

mi

mile(s)

min

minute(s)

mm

millimeter(s)

mph

miles per hour

Mr.

Mister (always abbreviated)

Mrs.

Mistress (always abbreviated)

Msgr

Monsignor

mt.

Mount, Mountain

mts.

mountains

Mus.

Museum

N

north; Newton(s)

NAACP

National Association for the Advancement of Colored People

NASA

National Aeronautics and Space Administration

NATO

North Atlantic Treaty Organization

NE

northeast

no.

number

Nov.

November

OAS

Organization of American States

Oct.

October

Op.

Opus [work]

oz

ounce(s)

pl.

plural

pop.

population

pseud.

pseudonym

pt.

part(s)

pt

pint(s)

pub.

published; publisher

qt

quart(s)

Rev.

Revelation; the Reverend

rev.

revised

R.N.

registered nurse

rpm

revolution(s) per minute

RR

railroad

S

south

S

second(s)

SEATO

Southeast Asia Treaty Organization

SEC

Securities and Exchange Commission

sec

second(s); secant

Sept.

September

Ser.

Series

Sgt.

Sergeant

sq

square

Sr.

Senior

SSR

Soviet Socialist Republic

St.

Saint; Street

UNICEF

United Nations Children’s Fund

uninc.

unincorporated

Univ.

University

U.S.

United States

USA

United States Army

USAF

United States Air Force

USCG

United States Coast Guard

USMC

United States Marine Corps

USN

United States Navy

USSR

Union of Soviet Socialist Republics

VFW

Veterans of Foreign Wars

VISTA

Volunteers in Service to America

vol.

volume(s)

vs.

versus

W

west; watt(s)

WHO

World Health Organization

wt.

weight

yd

yard(s)

YMCA

Young Men’s Christian Association

YWCA

Young Women’s Christian Association

 

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