Typical purposes for developing and implementing a controlled natural language are to aid understanding by non-native speakers or to ease computer processing.
An example of a widely-used controlled natural language is Simplified Technical English, which was originally developed for aerospace and avionics industry manuals.
[3] Natural languages evolve, through fluctuations in vocabulary and syntax, to incrementally improve human communication.
It is spoken by over 10 million people worldwide and is one of the two official languages of the Republic of Haiti.
Latino sine flexione, another international auxiliary language, is no longer widely spoken.