What does UI stand for?

Flugfelag Nordurlands - Northlands Air - ICAO designator (AD)

International Union of Graphic Reproduction Industries (BUAC)

Ube Industries (SAUS)

Ulcer Index (STED)

Ultrasonic Industry (WDAA)

Underground Injection - of wastes

Understanding Industry (AIE)

Underwater Institute (SAUS)

Underwear Institute - Later, NKMA (EA)

Undifferentiated Infiltrating - Tumor - Oncology

Unearned Income (MHDW)

Unemployment Insurance

Unexplained Infertility

UNICORN International (SAUS)

Unicorn International Pte Ltd. (SAUS)

Uniformity of Illumination (SAUS)

Union Institute (EA)

Union Interparlementaire - Inter-Parliamentary Union (EAIO)

Union-Intersection - Statistics

Unique Indentifier - Computer science

United Inches

United Inns (EFIS)

Unit Indicator (SAUS)

Unit Injector - Automotive engineering

Unit Interval (SAUS)

Unit of Issue (KSC)

Universal Instantiation - Rule of quantification - Logic

Universal-International Studios (IIA)

Unix International - Computer science

Unnumbered Information - Telecommunications (OSI)

Unnumbered Interrupt - Open Systems Interconnection (ODAA)

Unreported Income - IRS

Unscheduled Interruption (SAUS)

Unsigned Integer - Computer science

Upledger Institute - Association (EA)

Uranium Institute - British (EAIO)

Urban Initiatives (EA)

Urban Institute (EA)

Ureteral-Intestinal - Medicine (DAVI)

Urinary Incontinence (STED)

Urinary Infection - Medicine

Uroporphyrin Isomerase - An enzyme (AAMN)

USE, Inc. - Acronym is now organization's official name (EA)

User Interface

Ut Infra - As Below - Latin

United Kingdom Miscellaneous Islands - MARC country of publication code - Library of Congress (LCCP)