a social division of (usually preliterate) people | the army of the United States of America; the agency that organizes and trains soldiers for land warfare |
a federation (as of American Indians) | North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776 |
group of people related by blood or marriage | |
(biology) a taxonomic category between a genus and a subfamily | |