550 Must-Know Words for TOEFL iBT
Test PrepCEFR B2-C1
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549 words

550 Must-Know Words for TOEFL iBT

High-frequency and challenging academic vocabulary compiled from authentic TOEFL iBT exams. Covers essential academic terms, distinct parts of speech, and contextual usage to boost reading, listening, speaking, and writing scores.

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Sample Words in this Deck

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

1.

hierarchy

/ˈhaɪəˌrɑːrki/
noun

a system in which people or things are arranged according to their importance or rank

“The company has a strict hierarchy of managers and employees.”

2.

dissolve

/dɪˈzɑːlv/
verb

to make something solid turn into liquid by mixing it with a liquid

“Add sugar and stir until it dissolves in the water.”

3.

aesthetic

/ɪˈstɛtɪk/
adjective

relating to beauty or the appreciation of beauty

“The museum has a wonderful aesthetic appeal.”

4.

sprout

/spraʊt/
verb

To grow or begin to grow from a seed or root.

“The plant sprouted after a few days of watering.”

5.

bias

/ˈbaɪ.əs/
noun

a tendency, inclination, or prejudice toward or against something or someone

“The report was criticized for its political bias.”

6.

halt

/hɑːlt/
verb

to stop or cause something to stop suddenly

“The car halted at the red light.”

7.

precipitate

/ˈprɛsɪpeɪt/
verb

To cause something to happen suddenly or quickly.

“The protestors precipitated a change in government policy.”

8.

nurture

/ˈnɜːtʃər/
verb

To care for and encourage the growth or development of someone or something.

“She nurtured her children with love and patience.”

9.

refuge

/ˈrɛfjuːʒ/
noun

A place of safety or shelter

“The mountain cave served as a refuge for the lost hikers.”

10.

placid

/ˈpleɪsɪd/
adjective

Calm and peaceful

“The placid lake reflected the surrounding mountains perfectly.”

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