English abbreviations from h to ha
- h (hour(s))
- H. (Haeres ("Heir"); Hic ("Here"))
- H&A (Help & Advice)
- H/H (Hospital/Homebound)
- H&I (Harassing and Interdicting)
- H&J (Hyphenation and Justification)
- H/J (Hunter/Jumper)
- H&K (Heckler and Koch)
- H/MAD (High/Medium Altitude Air Defence ("aytchmad"; see also HIMAD))
- H&N (head and neck)
- H&P (Hydaulics & Pneumatics)
- H&S (Headquarters and Service)
- H/S/O (Hardware/Software/Operations)
- H/W (Homework)
- H20 (Water)
- H2O2 (Hydrogen Peroxide)
- H2S (Hydrogen Sulfide)
- HA (Hospital Apprentice)