world language 
noun
1A language known or spoken in many countries.Not to be outdone, the French, ever concerned about the inevitable decline of their language as a world language, have decided to emulate the Anglo-Saxons by beginning to put online the whole content of the Bibliothèque Nationale....
- In the past decade there's been no let-up in the way that English has continued to grow as a world language.
- Then in her last few paragraphs she gets to what one might reasonably think is the point, the establishment of English as a world language.
1.1An artificial language for international use: there have been attempts to introduce a standard world language...
- The President reckoned that although English was doing quite well as a world language, they wanted Esperanto to become the next world language.
- I think Esperanto should be the world language!
- opisthodont
- opisthogastric
- opisthoglyph
- opisthoglyphic
- opisthoglyphous
- opisthognathous
- opisthograph
- opisthographic
- opisthorchiasis
- opisthosoma
- opisthosomal
- opisthotic
- opisthotonic
- opisthotonos
- opisthotonus
- opium
- opium alkaloid
- opiumate
- opium den
- opium dream
- opium habit
- opium joint
- opium lamp
- opiumless
- opium plant