This Spanish dictionary includes over 250,000 words and phrases; 450,000 translations; fuller coverage of Latin-American Spanish and American English; thousands of example sentences carefully selected to illustrate the full range of meanings and typical contexts; special emphasis on modern idioms and colloquial usage; extensive treatment of specialist and scientific vocabulary; detailed labelling for easy identification of senses, style levels, and regional expressions; full and clear guidance on key constructions, complementation, and difficult points of grammar; and a 100-page guide to self-expression in Spanish and English.