An artificial language used for trade between speakers of different languages WordNet 3.0 & Open English WordNet

A pidgin, or pidgin language, is a grammatically simplified means of communication that develops between two or more groups of people that do not have a language in common: typically, its vocabulary and grammar are limited and often drawn from several languages. Wikipedia

Simplified language that develops between two or more groups who do not share a common language, as contrasted to a Creole language, a full language with native speakers, often originating from a Pidgin language. Wikipedia Disambiguation

A linguistic concept Wikipedia Disambiguation

Simplified language Wikidata

A simplified language that develops as a means of communication between two or more groups who do not share a common language, in situations such as trade. OmegaWiki

An amalgamation of two disparate languages, used by two populations having no common language as a lingua franca to communicate with each other, lacking formalized grammar and having a small, utilitarian vocabulary and no native speakers. Wiktionary

Amalgamation of two languages having no native speakers. Wiktionary (translation)