“On-the-spot” languages that develop when people with no common language come into contact with each other. Nobody speaks a pidgin as their first language.
A pidgin language is a blend of the vocabulary of one major language with the grammar of one or more other languages.
The major languages are usually the languages of the former major colonial powers, e.g. English, French, and Portuguese.
For example, the establishment of plantations in the Caribbean, with large groups of slaves from different language backgrounds who came from West Africa, gave rise to a number of pidgins based on English, French, Spanish, Dutch, and Portuguese.
(Creole: the languages/Pidgin language develop(s) into one new form of standardized language)