The language of the Tohono O'odham (formerly known as Papago) and Pima Indians is an important subfamily of Uto-Aztecan spoken by some 14,000 people in southern Arizona and northern Sonora. This dictionary is a useful tool for native speakers, linguists, and any outsiders working among those peoples. The second edition has been expanded to more than 5,000 entries and enhanced by a more accessible format. It includes full definitions of all lexical items; taxonomic classification of plants and animals; restrictive labels; a pronunciation guide; an etymology of loan words; and examples of usage...