AskDefine | Define worlds



  1. Plural of world

Derived terms

The World is a proper noun for the planet Earth envisioned from an anthropocentric or human worldview, as a place inhabited by human beings. It is often used to signify the sum of human experience and history, or the 'human condition' in general. The world population is over 6.60 billion people.
In a metaphysical context, World may refer to everything that constitutes reality and the Universe: see World (philosophy).


In English, world may be parsed as rooted in a compound of the obsolete words were, "man", and eld, "age"; thus, its etymology may be semantically rendered as "age or life of man".


'World' distinguishes the entire planet or population from any particular country or region: world affairs are those which pertain not just to one place but to the whole world, and world history is a field of history which examines events from a global (rather than a national or a regional) perspective. Earth, on the other hand, refers to the planet as a physical entity, and distinguishes it from other planets and physical objects.
World can also be used attributively, as an adjective, to mean 'global', 'relating to the whole world', forming usages such as World community. See World (adjective).
By extension, a world may refer to any planet or heavenly body, especially when it is thought of as inhabited.
World, when qualified, can also refer to a particular domain of human experience.


Earth is the only place in the universe where life is known to exist. Scientific evidence indicates that the planet formed 4.54 billion years ago, and life appeared on its surface within a billion years. Since then, Earth's biosphere has significantly altered the atmosphere and other abiotic conditions on the planet, enabling the proliferation of aerobic organisms as well as the formation of the ozone layer which, together with Earth's magnetic field, blocks harmful radiation, permitting life on land.
Earth's outer surface is divided into several rigid segments, or tectonic plates, that gradually migrate across the surface over periods of many millions of years. About 71% of the surface is covered with salt-water oceans, the remainder consisting of continents and islands; liquid water, necessary for all known life, is not known to exist on any other planet's surface. Earth's interior remains active, with a thick layer of relatively solid mantle, a liquid outer core that generates a magnetic field, and a solid iron inner core.
The earth consists of seven contenets they as follows: North America, South America, Antarctica, Africa, Europe, Asia and Australia; the biggest of all is Asia.
Earth interacts with other objects in outer space, including the Sun and the Moon. At present, Earth orbits the Sun once for every roughly 366.26 times it rotates about its axis. This length of time is a sidereal year, which is equal to 365.26 solar days. The Earth's axis of rotation is tilted 23.4° away from the perpendicular to its orbital plane, producing seasonal variations on the planet's surface with a period of one tropical year (365.24 solar days). Earth's only known natural satellite, the Moon, which began orbiting it about 4.53 billion years ago, provides ocean tides, stabilizes the axial tilt and gradually slows the planet's rotation. A cometary bombardment during the early history of the planet played a role in the formation of the oceans. Later, asteroid impacts caused significant changes to the surface environment.


A diverse array of living organisms can be found in the biosphere on Earth. Properties common to these organisms—plants, animals, fungi, protists, archaea and bacteria—are a carbon- and water-based cellular form with complex organization and heritable genetic information. They undergo metabolism, possess a capacity to grow, respond to stimuli, reproduce and, possibly, through natural selection, adapt to their environment in successive generations.


Humans, or human beings, are bipedal primates belonging to the mammalian species Homo sapiens. Compared to other species, humans have a highly developed brain capable of abstract reasoning, language, and introspection. This mental capability, combined with an erect body carriage that frees their upper limbs for manipulating objects, has allowed humans to make far greater use of tools than any other species. DNA evidence indicates that modern humans originated in Africa about 200,000 years ago. Humans now inhabit every continent and low Earth orbit, with a total population of over 6.7 billion as of March 2008.
Like most primates, humans are social by nature. However, humans are particularly adept at utilizing systems of communication for self-expression, the exchange of ideas, and organization. Humans create complex social structures composed of many cooperating and competing groups, from families to nations. Social interactions between humans have established an extremely wide variety of traditions, rituals, ethics, values, social norms, and laws which form the basis of human society. Humans have a marked appreciation for beauty and aesthetics which, combined with the human desire for self-expression, has led to cultural innovations such as art, literature and music.
Humans are noted for their desire to understand and influence the world around them, seeking to explain and manipulate natural phenomena through science, philosophy, mythology and religion. This natural curiosity has led to the development of advanced tools and skills; humans are the only extant species known to build fires, cook their food, clothe themselves, and use numerous other technologies.


A summary of world development:

See also

External links


worlds in Arabic: عالَم
worlds in Official Aramaic (700-300 BCE): ܥܠܡܐ (ܐܪܥܐ)
worlds in Aymara: Pacha
worlds in Min Nan: Sè-kài
worlds in Catalan: Món
worlds in Cebuano: Kalibotan
worlds in Czech: Svět
worlds in German: Welt
worlds in Dhivehi: ދުނިޔެ
worlds in Spanish: Mundo
worlds in Esperanto: Mondo
worlds in Basque: Mundu
worlds in Persian: جهان
worlds in French: Monde (univers)
worlds in Korean: 세계
worlds in Croatian: Svijet
worlds in Ido: Mondo
worlds in Interlingua (International Auxiliary Language Association): Mundo
worlds in Italian: Mondo
worlds in Kazakh: Дүние жүзі
worlds in Kurdish: Cîhan
worlds in Latvian: Pasaule
worlds in Japanese: 世界
worlds in Norwegian Nynorsk: Verd
worlds in Central Khmer: ពិភពលោក
worlds in Uzbek: Dunyo
worlds in Polish: Świat
worlds in Portuguese: Mundo
worlds in Quechua: Kay pacha
worlds in Albanian: Bota
worlds in Swati: Úmhlâba
worlds in Slovak: Svet
worlds in Slovenian: Svet
worlds in Swedish: Värld
worlds in Tagalog: Mundo
worlds in Vietnamese: Thế giới
worlds in Tajik: Ҷаҳон
worlds in Ukrainian: Світ
worlds in Urdu: دنیا
worlds in Volapük: Vol
worlds in Wolof: Àdduna
worlds in Yiddish: וועלט
worlds in Samogitian: Sviets
worlds in Chinese: 世界
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