Newly Updated Edition. Expanded Edition. Over 36,000 entries with 200 new words and senses (many from technology & life sciences). Expanded usage examples include 1,300 "es from classic and contemporary children's literature. 250 word history paragraphs and and over 120 synonym paragraphs. Over 900 vibrant, colorful illustrations, photographs, and diagrams. Designed to help students and educators meet Common Core Standards. Perfect resource for school or home.