This document provides vocabulary words and definitions for Week 13 of a College Composition class. It includes 20 words: hardihood, harmonious, havoc, hawthorn, hazard, heartrending, heathenish, heedless, heifer, heinous, hemorrhage, henchman, henpeck, heptagon, heptarchy, herbaceous, herbarium, herbivorous, hereditary, and heredity. The definitions cover a range of topics from foolish daring to the transmission of traits from parents to children.