English abbreviations from hcat to hci
- HCAT (Hard Chrome Alternatives Team)
- HCB (Hogares Comunitarios de Bienestar (Community Welfare Daycare Centers))
- HCBS (home and community-based services)
- HCBW (home and community-based waivers)
- HCC (Columbia County Airport (FAA: 1B1))
- HCCI (Homogeneous Charge Compression Ignition)
- HCCS (Horizontal Clamp Connection System)
- HCCT (Heat Cell Conductor Technology)
- HCD (Hollywood Creative Directory)
- HCDP (Human Communications Data Protocol)
- HCE (Home Community Education)
- HCEF (Holy Land Christian Ecumenical Foundation)
- HCER (high-capacity extended range)
- HCF (Highest Common Factor)
- HCFC (Hydro-Chloro-Fluoro Carbon)
- HCFI (Haldimand Community Forest Initiative)
- HCFI ARL (Horseless Carriage Foundation, Inc., Automotive Research Library)
- HCFL (Horseless Carriage Foundation Library)
- HCFP (Hancock Country Food Pantry)
- HCFS (Hathaway Children and Family Services)
- HCFSP (Hartman Child and Family Scholars Program)
- HCG (Hard Core Gamer)
- HCHC (Herkimer Country Hunger Coalition)
- HCHE (high-capacity high-explosive)
- HCI (Human-Computer Interaction/Interface)