The Gibson Code is a

constructed language A constructed language (sometimes called a conlang) is a language whose phonology, grammar, and vocabulary, instead of having developed naturally, are consciously devised for some purpose, which may include being devised for a work of fiction ...

invented by Manly B. Gibson of the

United States Army The United States Army (USA) is the land warfare, land military branch, service branch of the United States Armed Forces. It is one of the eight Uniformed services of the United States, U.S. uniformed services, and is designated as the Army o ...

Coastal Artillery Coastal artillery is the branch of the armed forces concerned with operating anti-ship artillery or fixed gun batteries in coastal fortifications. From the Middle Ages until World War II, coastal artillery and naval artillery in the form o ...

, which replaces words with numbers using the digits 0-9. An example is ("The boy eats the red apple").

References

Science News Online: World figure code

Engineered languages Constructed languages introduced in the 20th century {{conlang-stub