Hard TOEFL Words - Group 6

[Esc] (1)
n. a person from whom you are descended

[Esc] (2)
n. cutting edge; front

[Esc] (3)
n. arrival of something in a sudden or unexpected manner; chance; accident; luck

[Esc] (4)
n. battle, assault, or quarrel with violence; wear away by rubbing

[Esc] (5)
n. branch of biology that studies heredity and variation in organisms

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n. beam of steel, wood, or reinforced concrete, used as main horizontal support in building

[Esc] (7)
n. aircraft supported only by the dynamic action of air against its surfaces

[Esc] (8)
n. a small number

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v. cause to be at a disadvantage; impede; cripple; hinder

[Esc] (10)
n. the deepest feelings or affections; one of the nerves or tendons formerly believed to brace and sustain the heart