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| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| a gadget; dingus; thingumbob. |
before 950; Middle English erthe, Old English eorthe; cognate with German Erde, Dutch aarde, Old Norse jǫrth, Danish jord, Gothic airtha
3. Earth, globe, world are terms applied to the planet on which we dwell. Earth is used especially in speaking of a condition of existence contrasted with that in heaven or hell: those who are yet on earth. Globe formerly emphasized merely the roundness of the earth: to circumnavigate the globe. It is now used more like world, with especial application to the inhabitants of the earth and their activities, interests, and concerns. In this sense, both globe and world are more inclusive than earth and are used more abstractly: the politics of the globe; the future of the world; One World.
Based on the Random House Dictionary, © Random House, Inc. 2012.
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earth
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earth (ûrth)
n.
Any of several metallic oxides, such as alumina or zirconia, from which it is difficult to remove oxygen. No longer in technical use.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Earth  (ûrth) Pronunciation Key
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Earth definition
The planet on which we live — the third planet from the sun.
Note: The Earth was formed at the same time as the sun, about 4.6 billion years ago.
Note: It consists of an inner core made of iron and nickel, an outer core of liquid metal, a mantle, and, on the outside, a crust.
Note: The surface of the solid Earth is in a state of constant change as the rock is moved around by the processes of plate tectonics.
Note: On the Earth's surface, the oceans and the continents form the stage on which the evolution of life takes place. The atmosphere above the surface circulates, producing the daily weather.
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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on earth
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Also, in creation; in the world. Ever, anywhere, of all possible things. These phrases are all used for emphasis in questions or, less often, in a negative context. For example, What on earth is he doing with a spade? or Where in creation did that child go? or How in the world do you expect me to carry all those bags? [Late 1700s]
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like nothing on earth. Incomparable. For example, That perfume smells like nothing on earth, or Her new hair color is like nothing on earth. [c. 1900]
Copyright © 1997. Published by Houghton Mifflin.
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