Hard TOEFL Words - Group 5

[Esc] (1)
n. an ecological community together with its environment, a system formed by interactions of components with their environments

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a. basic; fundamental

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v. decorate with needlework; add details to

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v. activate; stimulate

[Esc] (5)
n. a reference work containing articles on various topics

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a. charming; tending to draw attention or affections

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v. construct; stand; set up

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n. development; progression

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v. be free from; free from an obligation, a duty, or a liability to which others are subject

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a. demonstrative; indicative