dois doings • dois mil e vinte e oito · · · Info · Definitions · Characters · · dois · · Text Latin · · Script 4 · · Length 1 · · Syllables Definitions · · · (noun) the United States federal department charged with conservation and the development of natural resources; created in 1849. Synonyms: Department of the Interior, Interior Department, Interior, DoI. · · Noun Definition 1 Characters · · d latin small letter d U+0064 i latin small letter i U+0069 o latin small letter o U+006F s latin small letter s U+0073