heptagon

n geometric figure with seven sides and angles 七边形; 七角形.

hem-stitch, hemisphere, hemispherical, hemlock, hemophilia, hemorrhage, hemp, hempen, hen, hen-coop, hen-house, hen-party, hence, henceforth, henchman, henna, hennaed, henpecked, Henry Kaiser, hepatitis, heptagonal, her, herald, heraldic, heraldry, herb, herbaceous, herbaceous border, herbage, herbal, herbicide, herbivore, herbivorous, herculean, herd, herd instinct, herdsman, here, here and now, here and there,