What does chaco mean?
The Chaco, more fully the Gran Chaco, is a vast lowland region of South America covering roughly a million square kilometres across northern Argentina, western Paraguay, eastern Bolivia, and neighbouring Brazil. It is a hot, semi-arid plain of thorn scrub and dry forest, one of the largest such ecosystems in the world, and it remains notably sparsely settled despite modern agricultural expansion. The name derives from a Quechua term associated with hunting grounds, reflecting how indigenous peoples long used the area. Historically, the region's remoteness made it a refuge for indigenous groups resisting European colonization, and its disputed borders provoked the bloody Chaco War between Paraguay and Bolivia in the 1930s. Today the word appears chiefly in geography, history, and conservation writing about this distinctive wilderness.
nounA large semi-arid lowland region extending across parts of Argentina, Paraguay, Bolivia, and Brazil; when capitalized (the Chaco or Gran Chaco) it refers specifically to this South American territory.
- The Gran Chaco: a large semi-arid lowland plain spanning northern Argentina, western Paraguay, eastern Bolivia, and adjacent Brazil, characterized by thorn forest and scrubland.
"The expedition spent three weeks crossing the dense scrubland of the Chaco."
"Much of the Gran Chaco remains sparsely populated, its dry forests home to jaguars and indigenous communities."
"Paraguay and Bolivia fought over the arid expanse of the Chaco in the 1930s."
Rarely used in the plural, since the word normally denotes a single named region.
"Early explorers' accounts describe several distinct ecological zones within the Chacos."
The name 'Chaco' traces back to a Quechua word for a hunting ground — fitting for a vast wilderness that resisted conquest longer than almost anywhere else in South America.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of chaco
The word 'Chaco' comes from Quechua, the major language family of the Andes, via Spanish colonial usage. It is generally traced to a Quechua term connected to hunting or hunting grounds, which Spanish settlers applied to the interior lowlands east of the Andes. From the colonial period onward, 'Gran Chaco' became established as the name for the entire plain, and the word entered English through geographical writing about South America.
How chaco is actually used
Usually capitalized when referring to the specific region; often appears with the definite article ('the Chaco'). The term is primarily geographical and historical rather than part of everyday vocabulary.
Easily confused with chaco
A chakra is an energy centre in Hindu and yogic tradition, whereas the Chaco is a geographic region in South America.