This paper examines how the lexicon is organized in a typical South Central language. Items like nouns, verbs, and adverbial expressions belong to open classes; pronominals, demonstratives, numerals, quantifiers, interjections, onomatopoetic words, and case markers form closed classes. Directionals, tense/aspect markers, valence-changing elements, verbal classifiers, elaborate expressions, and reduplicative patterns are treated as bound elements.