A hazard is a potential source of harm. Substances, events, or circumstances can constitute hazards when their nature would allow them, even just theoretically, to cause damage to health, life, property, or any other interest of value. The probability of that harm being realized in a specific incident, combined with the magnitude of potential harm, make up its risk, a term often used synonymously in colloquial speech.
HAZMAT is a shortcut for 'Hazardous Material'.
HEAP is a shortcut for 'Human Element Analysing Process'.
German: - HELCOM
is a shortcut for 'Helsinki Commission
German: HF is a shortcut for 'High Frequency'.
HFTG is a shortcut for 'Human Factor Task Group'.
German: HGO is a shortcut for 'Heavy Grade Oil'.
German: HLA is a shortcut for 'Helicopter Landing Area'.
English: Hash-based message authentication code
German: HMAC is a shortcut for 'Hazardous Materials Advisory Council'.
German: HNS is a shortcut for 'Hazardous and Noxious Substances'.