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Acronyms and abbreviations in English.

An acronym is a word or name formed as an abbreviation from the initial components of a phrase or a word, usually individual letters. There are no universal standards for the multiple names for such abbreviations or for their orthographic styling.


# 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
There are 318 terms in this directory beginning with the letter I.
I
Amperage

I-PNNI
Integrated PNNI

i.e.
1. id est (meaning : 'that is').
2. id est, that is.

I/M
Inspection/Maintenance

I2C
Infrastructure to Car (Communication)

IA
Integrated Approach

IAAA
I Am An Accountant

IAAL
I Am A Lawyer

IAB
International Arab Baccalaureate

IAC
In Any Case

IACG
Independent Automotive Consultants Group

IAE
In Any Event

IAFOR
The International Academic Forum

IAH
George Bush Intercontinental Airport, Houston, Texas.USA.

IANAA
I Am Not An Accountant

IANAC
I Am Not A Crook

IANAE
1. i Am Not An Expert.
2. I Am Not An Electrician.

IANAL
I Am Not A Lawyer

IANALB
I Am Not A Lawyer, But I Play One On TV

IANALBIPOOTV
I Am Not A Lawyer, But I Play One On TV

IANYM
In A New York Minute

IARC
International Agency for Research on Cancer

IARTPF
I Am Repeating This Parrot-Fashion

IARTPFWTSIOWIM
I am Repeating this Parrot fashion without the slightest idea of what it Means

IASH
I Am So Horny

IASIS
Institute for Advanced Study in the Integrative Sciences

IATA
International Air Transport Association

IATF
International Automotive Task Force

IBA
Incinerator Bottom Ash

IBAS
Intelligent Body Assembly System

IBBM
1. Institut Bank-Bank Malaysia.
2. Iron body, bronze mounted (valves).
3. Institute of Banking and Business Management (Port Moresby, Papua New Guinea).
4. Iron Brussels Beer Marathon (Brussels, Belgium).
5. Intestinal Brush-Border Membrane.
6. Internet-Based Business Model.

IBC
1. Intermediate Bulk Carrier.
2. Inadequate, But Cute.

Ibid.
Ibidem, in the same book or passage

IBL
Inbound Link

IBM
Inadequate, but Marketable

IBSS
Introductory Basic Sciences Stream

IBV
Information and Coordination Centre for Biological Diversity

ICAO
International Civil Aviation Organisation

ICB
I Care Because

ICBC
Insurance Corporation of British Columbia

ICBM
Inter Continental Ballistic Missile

ICC
International Chamber of Commerce

ICCR
1. Intensive Course in Clinical Research.
2. International Committee for Contraception Research.
3. International Center of the Capital Region.

ICCS
Integrated Coastguard Communication System

ICD
INTERNATIONAL CLASSIFICATION OF DISEASES

ICD-9-CM
International Classification of Diseases, Ninth Revision, Clinical Modification

ICDP
International Car Distribution Programme

ICE
1. In Car Entertainment.
2. Internal Combustion Engine.
3. Institute for Consumer Ergonomics.

ICEA
Insulated Cable Engineers Association

Icel.
Icelandic

ICER
Industry Council For Electronic & Electrical Equipment Recycling

ICF
International Classification of Functioning, Disability and Health

Ichthyol.
in Ichthyology

ICIHIC
I Cant Imagine How I Could Possibly Care Less

ICLARD
International Centre for Living Aquatic Resources Development

ICMP
Internet Control Message Protocol

ICPEMC
International Commission for Protection Against Environmental Mutagens and Carcinogens

ICR
Intelligent Character Recognition

ICSH
Interstitial cell stimulating hormone

ICT
Information Communication Technology

ICTYBT
I Could Tell You But Then Id Have To Kill You

ICUR
I see You Are

ID
Indonesia

id.
idem, the same

IDA
International Disaster Assistance

IDCA
International Data Center Authority

IDELSEY
Initiative for Diagnosis of Electronic Systems

IDF
Israeli Defense Force

IDGABTT
It Dont Get Any Better Than This

IDGAD
I Dont Give A Damn

IDGAS
I Dont Give A shit

IDGI
I Dont Get It

IDI
Indirect Injection

IDIADA
Institute for Applied Automotive Research (Spain)

IDK
I Dont Know

IDMEC
Institute of Mechanical Engineering

IDO
Interim Development Order

IDR
Internal Documentation Review.

IDSW
Intellectual Deep South Watch

IDTS
I Dont Think So

IDTT
Ill Drink To That!

IE
Ireland

IE.
Indo-European

IEA
1. International Energy Agency.
2. Institute of Economic Affairs.

IEC
International Electrotechnical Commission

IEE
Institute of Electrical Engineers

IEEE
Institute of Electrical and Electronics Engineers

IEEP
Institute for European Environmental Policy

IEI
Ion Exchange India

IEJI
International Institute of Juridical Studies

IEPC
Industrial and Economic Policy Committee

IERI
IEA-ETS Research Institute

IERS
International Earth Rotation and Reference Systems Service

IETF
Internet Engineering Task Force

IF
1. Industry Forum (of SMMT).
2. Intermediate Frequency.

IFBDO
International Federation of Blood Donor Organizations

IFGT
Irradiation and fusion gene transfer

IFLA
International Federation of Library Associations

IFMP
Ipsilons Flow Management Protocol

IG
Isolated Ground

IGCAR
Indira Gandhi Centre For Atomic Research

IGES
Initial Graphic Exchange Specification

IGOs
Intergovernmental Organisations

IGP
interior gate way protocol

IHATCF
I Have A Terrible Craving For Your Body!

IHDD
Institute on Human Development and Disability (The University of Georgia)

IHN
I Have Nothing

IHR
international health regulations

IHRA
International Harmonisation Research Activities

IHTBS
It Has To Be Shown

IHTFP
I Hate This fucking Place; I Have Truly Found Paradise

IIABDF
If It Aint Broke, Dont Fix It

IIHS
Insurance Institute For Highway Safety (USA)

IIP
Investors In People

IIR
Integrated Independent Review.

IIRC
1. If I Recall /Remember Correctly.
2. If I Remember Correctly

IIRCAI
If I Recal Correctly And I Do

IIRR
If I Recall Rightly

IITYWI
If I Tell You What It Means

IITYWTMWYBMAD
If I Tell You What This Means Will You Buy Me A Drink

IITYWTMWYKM
If I Tell You What This Means, Will You Kiss Me

IITYWY
If I Tell You, Will You Buy Another Drink

IIUC
If I Understand Correctly

IIW
Instructions In Writing

IIWCC
International Interdisciplinary Wound Care Course

IIWPG
International Insurance Whiplash Protection Group

IJLS
I Just Like Saying

IK
I Know

IL
1. Israel.
2. Interleukins.

ILEV
Inherently Low Emission Vehicle

ILI
I Like Ike

ILICIS
I Laughed, I Cried, I Spat Coffee/ Coke/ Cadmium On My Keyboard

ILIWTP
I Love It When The Plan Comes Together.

ILIWTPCT
I Love It When the Plan Comes Together

Illustr.
(in titles) Illustration, -ted

ILM
Incoming Label Map

ILO
International Labour Organisation

ILSHIB
I Laughed So Hard I Broke

ILSHIBAMF
I Laughed so Hard I Broke All my Furniture

ILU
I Love yoU

ILY
I Love You

IM
1. Inspection Manual.
2. Inspection Maintenance.
3. Isle of Man.

IMAO
In My Arrogant Opinion

IMarE
Institute of Marine Engineers

IMBE
Improved Multi-Band Excitation

IMBO
In My Biased Opinion

IMCDO
In My Conceited Dogmatic Opinion

IMCO
In My Considered Opinion

IMDG
International Maritime Dangerous Goods Code

IMDS
International Material Data System

IME
In My Experience

IMechE
Institution of Mechanical Engineers

IMFU
Immense Military fucking Up

IMHO
In My Humble Opinion

IMI
Institute of the Motor Industry

imit.
imitative

IMMA
International Motorcycle Manufacturers

IMMOR
I Make My Own Rules

Immunol.
in Immunology

iMNP
Intestinal mononuclear phagocytes

IMNSHO
In My Not So Humble Opinion

IMNSVH
In My Not So Very Humble Opinion

IMO
1. In My Opinion.
2. International Maritime Organisation.

IMOBO
In My Own Biased Opinion

imp.
imperative

IMPEL
Implementation & Enforcement of Environmental Law (EU Network)

impers.
impersonal

impf.
imperfect

IMPOV
In My Point Of View

IMT
Institute of Municipal Transprot

IMT/ LMT
International Modern Trade / Local Modern Trade

IMV
In My View

IMVHO
In My Very Humble Opinion

IMVIC
International Motor Vehicle Inspection Committee

IN
India

INAR
Institutal National Autovehicule Retiere (Romania)

Inc
incorporated

INCPEN
Industry Council For Packaging

ind.
indicative

indef.
indefinite

Industr.
(in titles) Industry, -ial

INEP
Biological Museum of Institute of Ecological Problems of the North of Ural Branch of Russian Academy of Sciences, Russia, Arkhangelsk

inf.
infinitive

infl.
influenced

INGSI
Im Not Gonna Say it

Inorg.
(in titles) Inorganic

INPO
In No Particular Order

Ins.
(in titles) Insurance

Inst.
(in titles) Institute, -tion

INT
Ill Never Tell

int.
interjection

intr.
intransitive

INTRASTAT
International Trade Statistics Users Group

Introd.
(in titles) Introduction

IO
British Indian Ocean Territory

IOC
Indirect Object Clitic

IOCU
International Organization of Consumer Unions

IOEMS
Independent Original Equipment Manufacturers Section

IOM
International Organization for Migration

ION
Internet working over NBMA

IOS
Irish Over Seas

IOU
I owe you

IOW
In Other Words

IP
Internet Protocol

IPA
1. Indefinite Particle Article.
2. International Phonetic Alphabet.
3. Intelligent Parking Assist.

IPB9
Internet Business Promoter

IPC
Integrated Pollution Control

IPCS
International Programme on Chemical Safety

IPIECA
International Petroleum Industry Enviroment Conservation Association

IPIP
I am Polish and I am Proud

IPO
initial public offer

IPPC
Integrated Pollution Prevention and Control

IPPR
Institute for Public Policy Research

IPR
Intelligent Property Rights

IPS
Intelligent Protection Safety System

IPTS
Institute for Prospective Technologies Studies (EC in Seville, Spain)

IPUMS
Integrated Public Use Microdata Series

IPv4
IP version 4

IPv6
IP version 6

IQ
1. Iraq.
2. INTELLIGENCE QUOTIENT.

IQA
Institute of Quality Assurance

IQR
interquartile range

IR
Iran (Islamic Republic Of)

Ir.
Irish

IRA
Irish Republican Army

IRC
International Rewards Centre

IRCA
International Register of Certificated Auditors

IRCD
Injection Rate Control Device

IRF
International Road Federation

IRFA
Initial Regulatory Flexibility Analysis (USA)

IRFO
International Road Freight Office

IRI
International Roughness Index

IRIN
Integrated Regional Information Networks

IRL
In Real Life

IRO
Icelandic Registration Office for Vehicle Type Approval

IROOC
Ive Run Out Of Cigarettes

IRR
International Rail Regulator

irreg.
irregular, -ly

IRRT
International Relations Round Table

IRS
Independent Rear Suspension

IRSI
1. Information Retrieval Society of India.
2. International Risk Sharing Index.

IRTAD
International Road Traffic Accidents Database

IRTE
Institute of Road Transport Engineers

IRTO
International Road Traffic Organisation

IRU
International Road Transport Union

IS
1. Iceland.
2. Image Stablizer.
3. Information Systems.

ISA
Intelligent Speed Adaptation

ISAGN
I See A Great Need

ISARS
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing

ISB
1. Invest to Save Budget.
2. Intermediate Side Band.

ISBD
International Standard Bibliographic Description

ISBN
International Standard Book Number

ISCOR
International Security and Conflict Resolution (SDSU)

ISDN
Integrated Services Digital Network

ISI
Inspection Services International

ISL
1. International Sign Language.
2. Islamic.

ISM
Industrial Scientic and Medical

ISMC
1. Institute for the Study of Muslim Civilisations.
2. Integrated Services Management Center (SAIC).

ISMN
International Standard Music Number

ISO
1. In Search Of.
2. International Standard Organization.

ISO14001
ISO Environmental Management Standard (=BS 7750)

ISO9000
ISO Qqality Standard

ISOFIX
Seat Bight Anchorages and attachments for child restraint systems

ISP
Internet Service Provider

ISPE
International Society for Pharmaco epidemiology

ISPRS
International Society of Photogrammetry and Remote Sensing

ISSB
Iron & Steel Statistics Bureau

ISSN
International Standard Serial Number

ISTM
It Seems To Me

ISTR
I Seem To Recall/ Remeber

ISWA
International Solid Wastes Association

IT
1. Information Technology.
2. Italy.

It.
Italian

ITA
I Totally Agree

ITC
Inland Transport Committee (UN-ECE)

ITCA
Independent Television Companies Association

ITFA
In The Final Analysis

ITN
Invitation To Negotiate

ITR
Internal Technical Report

ITRO
In The Region Of

ITS
1. Intelligen Transport System.
2. Inflatable Tubular Structure.

ITS (UK)
ITS United Kingdom

ITSEC
Standards on Security Systems for Data

ITSOFC
Intermediate Temperature Solid Oxide Fuel Cell

ITSUG
International Trade Statistical Users Group

ITU
International Telecommunications Union

ITU-R
International Telecommunication Union Radio (Section)

ITUSA
Information Technology Users Standards Association

ITYM
I Think You Mean

IUAC
International Union Against Cancer

IUC
In-Use Compliance

IUCC
International Union Contre Cancer

IUCLID
International Uniform Chemical Information Database

IUCN
International Union for the Conservation of Nature

IUD
1. In Use Deterioration.
2. Insert Usual Disclaimers.

IUKE
InsideE UK Enterprises (DTI)

IUNS
International Union of Nutritional Sciences

IUTHAL
I Used To Have A Lot Of Respect For Him/ Her

IUTKAT
I Used To Know All That Stuff

IV&V
Independent Verification and Validation.

IVA
Individual Vehicle Approval

IvehE
Institute of Vehicle Engineers (Formerly Ibcam)

IVHS
Intelligent Vehicle Highway Systems

IVIS
In-Vehicle Information Systems

IVT
Infinitely Variable Transmision

IVTM
Intergrated Vehicle Tyre Monitoring

IWBNI
It Would Be Nice If

IWEM
Instritution of Water & Environmental Management

IWIK
I Wish I Knew

IWM
Institute of Waste Management

IWPPA
Independent Waste Paper Processors Association

IWSCAMD
international watch of Syria children and mothers death

IWSN
I Want Sex Now

IYAM
If You Ask Me

IYFEG
Insert Your Favorite Ethnic Group

IYHO
In Your Humble Opinion

IYKWIM
If You Know What I Mean And I Think You Do

IYSWIM
If You See What I Mean

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