English abbreviations from uhvac to uiin
- UHVAC (Ultra High Voltage Alternating Current (electricity))
- UHVDC (Ultra High Voltage Direct Current (electricity))
- UHW (Ultimate Hardcore Wrestling)
- UHX (Ultra-temperature Heat Exchanger)
- UHZ (Utah's Hogle Zoo)
- UI (User Interface)
- UIA (Universidad IberoAmericana)
- UIB (El Caraño Airport)
- UIC (University of Illinois at Chicago)
- UICIO (Unit Identification Code Information Officer)
- UICM (University of Illinois College of Medicine)
- UID (User ID)
- UIDS (Unique Identifiers)
- UIE (User Interface Engineering)
- UIF (Unserviceable Items File)
- UIFG (User Interface Functional Group)
- uig (Uyghur language (ISO 639-2 code))
- UIH (Phu Cat Airport)
- UIIN (University Industry Innovation Network)