• WordNet 3.6
    • n Esperanto an artificial language based as far as possible on words common to all the European languages
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Webster's Revised Unabridged Dictionary
    • n Esperanto An artificial language, intended to be universal, devised by Dr. Zamenhof, a Russian, who adopted the pseudonym “Dr. Esperanto” in publishing his first pamphlet regarding it in 1887. The vocabulary is very largely based upon words common to the chief European languages, and sounds peculiar to any one language are eliminated. The spelling is phonetic, and the accent (stress) is always on the penult. A revised and simplified form, called Ido was developed in 1907, but Esperanto remained at the end of the 20th century the most popular aritficial language designed for normal human linguistic communication.
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Century Dictionary and Cyclopedia
    • n Esperanto The name of a recent ‘universal language’ constructed, like Volapük, by arbitrary reduction and manipulation of words and forms taken from existing European languages, and the adoption of a simple and regular inflection. The general aspect of the language as printed is that of a shrunken composite of Latin, Spanish, and French, with a Polynesian spelling.
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In literature:

Herve is not talking Economic Esperanto; he is talking French.
"Utopia of Usurers and other Essays" by Gilbert Keith Chesterton
Esperanto has no indefinite article for either singular or plural.
"A Complete Grammar of Esperanto" by Ivy Kellerman Reed
It didn't pay, and it was much harder than Esperanto.
"Punch, or the London Charivari, Vol. 156, April 16, 1919" by Various
Certainly the glittering water scenes are a dominant part of moving picture Esperanto.
"The Art Of The Moving Picture" by Vachel Lindsay
So long as Esperanto is disregarded, all these things must be.
"Mr. Britling Sees It Through" by H. G. Wells
But is it possible to philosophize in pure algebra or even in Esperanto?
"Tragic Sense Of Life" by Miguel de Unamuno
Will you learn Esperanto at Eton?
"Punch, or the London Charivari, Vol. 152, March 28, 1917" by Various
Esperanto, Forerunner of, I, 116.
"A Budget of Paradoxes, Volume II (of II)" by Augustus de Morgan
The universal language of humanity is neither Volapuk, nor Esperanto, nor Ido.
"Second Sight" by Sepharial
They would speak Latin as a sort of Esperanto, and drink enormous quantities of good beer.
"G. K. Chesterton, A Critical Study" by Julius West
The most diverse races already speak English, and all might learn Esperanto.
"The Sexual Question" by August Forel
Esperanto has exactly sixteen short rules.
"Border, Breed Nor Birth" by Dallas McCord Reynolds
It has been called the Esperanto of the Salonikans.
"With the French in France and Salonika" by Richard Harding Davis
It's a corrupt form of Esperanto, the language all the Terido worlds speak.
"The Ethical Engineer" by Henry Maxwell Dempsey
One of these is Esperanto, which is his hobby.
"Letters from China and Japan" by John Dewey
In the Code of Signals we had a language of our own, more immediate and attractive than Volapuek or Esperanto.
"Merchantmen-at-Arms" by David W. Bone
The following, then, is a forlorn attempt to find the common language, the esperanto of art.
"A Novelist on Novels" by W. L. George
I am in deep sympathy with the people who invented Volapuk, and are trying to invent Esperanto.
"The Ship Dwellers" by Albert Bigelow Paine
Partly through his zeal for Esperanto and partly through his passion for a "Free Russia", he was particularly keen to meet Stepniak.
"London Days" by Arthur Warren
Per tiu ci libreto mi havas la honoron prezenti al vi la lingvon internacian Esperanto.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7" by Various

In news:

When the three members of Peeesseye get together, they speak a strange vocabulary all their own, something akin to the secret language of twins or a deliberately aggressive Esperanto.
"If Esperanto ever becomes as widely dispersed as people originally hoped it would be, it would lose a kind of cachet," he says .