HC I. abbreviation 1. half calf 2. half chest 3. hand control 4. held covered; hold covered 5. high capacity 6. high church 7. high commissioner 8. high-compression 9. hockey club 10. Holy Communion 11.often not capitalized honoris causa 12. hot and cold 13. House of Commons 14. house of correction II. abbreviation 1.hard copy herein 2.hydrocarbon