Dictionary of the Chinook Jargon, or, Trade Language of Oregon by George Gibbs is a lexicon of Chinook Jargon, a pidgin language that developed in the Pacific Northwest to facilitate communication between Indigenous groups, European settlers, and traders. Gibbs, an ethnologist and linguist, compiled this dictionary to document the vocabulary and usage of this practical trade language, which combined elements from various Native American languages (notably Chinookan), French, and English.The dictionary provides definitions, pronunciations, and contextual examples of Chinook Jargon words, making it an essential resource for understanding the interactions and exchanges that shaped the culture of the Northwest in the 19th century. Gibbs’s work also includes notes on pronunciation, grammar, and the origins of certain terms, illustrating the language’s adaptability and its role in bridging cultural divides.