Libros de Larousse (2 libros)
Diccionario Escolar Elemental

Provides definitions and sentences for thousands of Spanish words, accompanied by information on the origins of foreign terms, synonyms and antonyms, and a "mini-encyclopedia" with more details for selected entries.
Larousse Standard Dictionary - Spanish-English

A bilingual dictionary with 175,000 entries also offers cultural notes, background information on life in English- and Spanish-speaking countries, and verb tables.