What does IB stand for?

I-Beam - Lumber (DAC)

Iberia Air Lines of Spain - ICAO designator (AD)

Iberia International Airlines of Spain (SAUS)

Ibidem - In the Same Place - Latin

Ibrahim-Beck - Disease - Medicine (DB)

Ice Box (SAUS)

Idaho Branch Office (SAUO)

Ideal Bypass - Medicine (EDAA)

Identification Beacon - Aviation (IAA)

Identification Block (SAUS)

Identifier Block

Illegal Behavior (SAUS)

Imbibition Printing - Cinematography (WDMC)

Immigration Branch (SAUO)

Immune Body

Impact Bag (SAA)

Imperial Bank (SAUO)

Imperial Beach (SAUS)

In-Band (SAUS)

Inboard (NASA)

In Bond - Wines and Spirits

Inbound

In Britain (SAUO)

In Bulk (IAA)

Incendiary Bomb

Incentive Base (VLIE)

Incentive-Based Policy - for environmental improvement

Inclusion Body - Cytology

Index Bit (SAUS)

Index Block (SAUS)

Index Bureau (SAUO)

Index of Body Build - Anatomy

India-Burma - World War II

Indicator Board (SAUS)

Individual Bias

Induction Balance (ADA)

Induction Brazing

Industrial Benefit (SAUS)

Industrial Business - Insurance term - British

Industrialised Building (SAUS)

Industrialized Building (PDAA)

Inert Building - NASA (KSC)

Infant Botulism - Medicine (MELL)

Infantry Battalion - Army

Infantry Brigade - British military (DMA)

Infectious Bronchitis - Medicine

Infinite Baffle (SAUS)

Information Bank (SAUS)

Information Bit (SAUS)

Information Bulletin

Information Bureau - Telecommunications (TEL)

Information Bus (IAA)

Inner Bottom - Technical drawings

Inner Bound (SAUS)

Input Block (SAUS)

Input Buffer - Telecommunications (TEL)

Input Bus - Computer science

Inquiry Branch (SAUO)

Insect Biochemistry - Medicine (EDAA)

Inspection Bulletin

Institute of Bankers - Later, CIB - British (DI)

Institute of Biology - British

Institute of Brewing - Also, IOB - British

Institute of Building - British

Instructional Brochure (SAUS)

Instruction Bank - Computer science

Instruction Block (SAUS)

Instruction Book

Instruction Brochure (SAUS)

Instruction Buffer (SAUS)

Instruction Bus - Computer science

Instructor Bombardier (SAUS)

Insulation Board (SAUS)

Integration Broker (GART)

Intelligence Branch

Intelligent Backtracking (SAUS)

Interbank (EBF)

Interbedded (SAUS)

Interface Board (SAUS)

Interface Bus - Computer science

Internal Bond - Pulp and paper technology

Internal Browning - of Fruits and Vegetables (BARN)

Internal Bus - Computer science

International Baccalaureate

International Bank (EFIS)

International Bank for Reconstruction and Development - Also known as World Bank

International Bibliography - A publication (SAUS)

International Broadcasting

International Butec Industry - Vancouver Stock Exchange symbol

International Rugby Football Board (SAUO)

Internet Bridge (ACAE)

Interposer Bail (SAUS)

Interpreter's Bible

Intra Bank S.A.L. (SAUO)

Introducing Broker (MHDB)

Invalid Behaviour (SAUS)

Investigation Branch - British - Australia (DCTA)

Invoice Book - Business term

Invoice Booklet (SAUS)

Inward Bound (SAUS)

Ion Beam (SAUS)

Ion Bombardment (SAUS)

Irish Baron (ROG)

Iron Body (SAUS)

Iron Bolts

Ironing Board (MSA)

Is Between (MHDB)

Isle of Man - NCIC country-territory code (NCIC)

Isobutylene (SAUS)

Isolation Bed - Infectious disease (DAVI)

Issue Book - DoD

Lineas Aereas du Espanalos - Iberia - Spain - ICAO designator

RAB - Radio Advertising Bureau Instant Background - A publication

Ibis - of Ovid - Classical studies (OCD)

Ibidem - Latin - In the same place (WDMC)

Indent Both (WDMC)