Deutsch: Gesundheitswesen / Español: Atención Médica / Português: Cuidados de Saúde / Français: Soins de Santé / Italiano: Assistenza Sanitaria /

Health care or healthcare is the improvement of health via the prevention, diagnosis, treatment, amelioration, or cure of disease, illness, injury, and other physical and mental impairments in people. Health care is delivered by health professionals and allied health fields. Medicine, dentistry, pharmacy, midwifery, nursing, optometry, audiology, psychology, occupational therapy, physical therapy, athletic training, and other health professions are all part of health care.

Deutsch: Krankenhaus / Español: Hospital / Português: Hospital / Français: Hôpital / Italiano: Ospedale

A hospital is a health care institution providing patient treatment by specialised staff and equipment.
Hospitals are usually funded by the public sector, by health organisations (for profit or nonprofit), health insurance companies, or charities, including direct charitable donations. Historically, hospitals were often founded and funded by religious orders or charitable individuals and leaders. Today, hospitals are largely staffed by professional physicians, surgeons, and nurses, whereas in the past, this work was usually performed by the founding religious orders or by volunteers.

Deutsch: Polyethylen / Español: Polietileno de alta densidad / Français: Polyéthylène haute densitê / Italiano: Polietilene ad alta densità
High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum. Known for its large strength to density ratio, HDPE is commonly used in the production of plastic bottles, corrosion-resistant piping, geomembranes, and plastic lumber. HDPE is commonly recycled, and has the number "2" as its recycling symbol.

Deutsch: Heizung
HVAC (heating, ventilating, and air conditioning; also heating, ventilation, and air conditioning) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. The heat generation is done by a heater.

HCL stands for Hydrochloric Acid, which is a strong, corrosive acid that is commonly used in various industrial applications.

Deutsch: Naturhafen / Português: Abra / Français: Havre

A harbor or harbour, or haven, is a body of water where ships, boats, and barges can seek shelter from stormy weather, or else are stored for future use. Harbors can be natural or artificial. An artificial harbor has deliberately constructed breakwaters, sea walls, or jettys, or otherwise, they could have been constructed by dredging, and these require maintenance by further periodic dredging.

Deutsch: Loch, Öffnung / Português: Hole / Italiano: Hole

A hole is an opening.

In an industrial or industry context, a "hole" can refer to several different things, including:

Deutsch: Halogene / Español: Halógeno / Português: Halogénio / Français: Halogène / Italiano: Alogeni
A halogen is a member of the chemical group of halogens. It is the only periodic table group that contains elements in all three familiar states of matter at standard temperature and pressure. All of the halogens form acids when bonded to hydrogen. Most halogens are typically produced from minerals of salts. The middle halogens, that is, chlorine, bromine and iodine, are often used as disinfectants. The halogens are also all toxic.