Difficult IELTS Words - Group 5

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n. remnant or trace of an organism of a past geologic age embedded and preserved in the earth crust.

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a. physically weak; easily broken

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n. part of a country which fronts or faces another country or an unsettled region; border, confine, or extreme part of a country

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n. passage or avenue for a fluid or flowing substance; specifically, a smoke flue or pipe; iron chimney of a steamship or the like

[Esc] (5)
n. science which treats the structure and mineral constitution of the globe

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n. brief explanation of words, often placed at back of book

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v. search blindly or uncertainly; reach about uncertainly; feel one's way

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n. area or environment where an organism or ecological community normally lives or occurs; place where a person or thing is most likely to be found

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v. raise; lift; elevate; raise to one's mouth in order to drink

[Esc] (10)
n. study of origin and nature of ideas