- Home
- H: 78 terms
- Habits of plants. Plant behaviour. Plant ecology. Plant ethology. The plant and its environment. Bionomics of plants
- Halides
- Handbooks. Manuals
- Handwritten documents (autograph, holograph copies). Manuscripts. Pictorial documents (drawings, paintings)
- Hard surfacing of highways. Pavement, carpet or wearing course. Preparation and use of materials
- Harmony. Counterpoint. Melody
- Haulage and handling. Hoisting. Winding. Surface transport
- Hausa
- Headgear. Hatmaking. Millinery
- Health and hygiene in relation to age, sex, ethnicity
- Health and hygiene of leisure, recreation, sleep
- Health and hygiene of the nervous system. Health and ethics
- Heat and cold application
- Heat conduction. Heat transfer
- Heat economy. Fuel economy. Fuels. Heating
- Heat engines (except steam engines)
- Heat engines in general. Generation, distribution and use of steam. Steam engines. Boilers
- Heat or fuel economy in general. Combustion. Natural fuels
- Heat treatment operations and equipment
- Heat. Thermodynamics. Statistical physics
- Heating, ventilation and air conditioning of buildings
- Hebrew
- Heraldry
- Herbaceous or non-woody plants (often called 'plants' or 'flowers')
- High ball games with large ball
- High explosives
- High level, top level of administration. Central, national government
- Higher education. Universities. Academic study
- Higher mental processes
- Highway engineering
- Highways in general. Roads. Carriageways. Streets. Rural and urban road systems
- Hinayana Buddhism. The lesser vehicle. Theravada Buddhism. Pali school
- Hindi
- Hindi language
- Hindi literature
- Hinduism narrowly
- Historical geology. Stratigraphy
- Historical sources
- History
- History as a science
- History as literary genre. Historical writing. Historiography. Chronicles. Annals. Memoirs. Journals. Diaries. Biography. Autobiography
- History of civilization. Cultural history
- History of economic theories, doctrines, dogmas
- History of the faith, religion, denomination or church
- Home affairs. Internal policy
- Home economics. Domestic science. Housekeeping
- Home economics. Housekeeping, furnishing and equipping a home etc. for particular kinds of person
- Hominidae
- Honduras. Republic of Honduras. República de Honduras
- Hong Kong. Xianggang (Hsiang-Kang)
- Horology. Determination and standardization of time
- Horse racing. Mounted racing
- Horticulture in general. Specific crops
- Household appliances and machines. Labour-saving devices in the home
- Human ancestry groups
- Human beings, born or unborn, living or dead
- Human biology
- Human geography (cultural geography). Geography of cultural factors
- Human relations in the enterprise. Personnel management
- Human-computer interaction. Man-machine interface. User interface. User environment
- Hungarian
- Hungarian language
- Hungarian literature
- Hungary. Hungarian Republic. Magyarorszag. Magyar Köztársaság
- Hunting
- Hunting. Fishing. Fish breeding
- Hydraulic energy. Water power. Hydraulic machinery
- Hydraulic engineering and construction. Water (aquatic) structures
- Hydraulic engineering in general
- Hydrosphere. Water in general. Hydrology
- Hydrostatics in general
- Hygiene generally. Personal health and hygiene
- Hygiene of air, water, soil. Pollution and its control
- Hygiene of dwellings
- Hylobatidae
- Hypermedia. Hypertext
- Hyperspace (space of more than three dimensions)
- Hyracoidea. Procaviidae