Hiri Motu is a simplified language that originated in Papua New Guinea, primarily used for trade and communication among different language groups. It evolved from the Motu language and incorporates elements from various local languages, making it a unique pidgin language. This language is particularly significant in the context of the Hiri Trade, a traditional trading system among coastal communities. Hiri Motu serves as a bridge for communication, allowing people to engage in commerce and cultural exchange, thus playing a vital role in the social fabric of the region.