400 Must-Have Words for the TOEFL
AcademicCEFR B2-C1
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400 words

400 Must-Have Words for the TOEFL

400 Must-Have Words for the TOEFL by Lawrence J. Zwier and Lynn Stafford-Yilmaz is a popular self-study guide designed to build core academic vocabulary for the TOEFL test.

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Sample Words in this Deck

Explore 10 preview flashcards with phonetic transcription, definition, and contextual usage.

1.

adversely

/ˈædvərsli/
adverb

In a way that causes harm or difficulty.

“The new policy affected the economy adversely.”

2.

fertilize

/ˈfɜːrtɪlaɪz/
verb

to make soil or land more suitable for growing plants by adding nutrients

“Farmers fertilize their fields to increase crop yields.”

3.

aggregate

/ˈæɡrɪɡət/
noun

A total or sum made up of smaller parts.

“The aggregate of the votes was announced today.”

4.

irrigation

/ˌɪrɪˈɡeɪʃən/
noun

The process of supplying water to land to help plants grow.

“Farmers use irrigation to water their crops.”

5.

precipitation

/prɪˌsɪpɪˈteɪʃən/
noun

Rain, snow, or other forms of water falling from the sky.

“The forecast predicts heavy precipitation tomorrow.”

6.

famine

/ˈfæmɪn/
noun

A severe shortage of food causing hunger and suffering.

“The country was hit by a terrible famine last year.”

7.

intensify

/ɪnˈtɛnsɪfaɪ/
verb

to become or make something stronger or more extreme

“The storm intensified overnight.”

8.

catastrophic

/ˌkætəˈstrɒfɪk/
adjective

Causing great damage or suffering.

“The storm was catastrophic for the city.”

9.

photosynthesis

/ˌfoʊtoʊˈsɪnθəsɪs/
noun

The process by which green plants make food using sunlight.

“Plants use photosynthesis to produce food.”

10.

obtain

/əbˈteɪn/
verb

to get or acquire something

“She managed to obtain a visa for her trip.”

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